d100 Crystal Zone Cornucopia at last

I hate crystals as a trope in sf or fantasy. I have quit many pc games because i find them kitsch and newage. Anyway they are not always shortcuts for creative autopilot.

Can work but mostly a confused lazy metaphor for mysterious tech/magic/power of some kind.

Occasional crystals in a setting ok. But if your playing Earthdawn or Carcossa or  Narcosa or my Planet Psychon setting they crystal wizard cod pieces worn by fractal dinosaurs might be common in some hexes. Underground would be good episodic use of these tables also. Or just for exotic treasure or quest object or dungeon relic.

Go find shards of the six crystal monuments in Ulthars deep Eric and your god will be super impressed! Honest!

Anyhow this went from a quick d100 idea to a huge bloated table with a whole dungeon zone - here are bloody crystals, feel free to ruin your setting with too many. If you think i have used something like any one of these before please call me out and comment.

The Crystal Zone Dungeon
This zone is alien. Possibly a recent arrival and growing or perhaps a remnant of something from long ago. Perhaps the geophysics and magical forces produce such places hidden from human kind. Or maybe they are more common in depths or in some quasi or demi planar suburb of the elemental planes of earth.

Crystal ecologies may have strange time spans. Chrystal folk grow their weapons and other tools over years or centuries. Crystal creatures might have long hibernation and whole ecology might slumber if non correct  stellar radiation about. Underground is a obvious location but also other dimensions or hidden under dungeons.

In one case a star fell from the sky and grew from a single meteor a whole crystalline civilization. Remnants of a race from the sky dome of heaven they were survivors of the dawn age. They were not impressed by meat and wood and  metal and set about fixing the world into lawful perfection. Some dungeons might have a crystal garden chamber or area, a remnant of the past or grown star seed Chrystal

Many crystals attuned to magic and psionics. Explorers come to loot crystals and magic and often kill and destroy with no understanding. Reptilians seem to be comfortable exploring here and even familiar with some of the crystal magic and technology. Their alieness is more comfortable than human. Goblins even seem to do OK but maintain a fungus garden nearby. Other species might use or abuse features of the crystal land like selling animals or crystal folk slaves. Harvesting their traditional crystalline data matrices as cheap jewels for young wizard punks is saddest of all. Erasing millions of years of history.Crystals most often associated with cosmic LAW. Chaos crystals would be flawed with irregular and illogical patterns. Others would smaller crystals and more fluid shapes like mercury. Chaos slimy blobs are messier than crystals and they tend to eat your hands with acid.   

When a crystal ecology covers an area with crystal, other grass and tree like fronds develop. Many animals and species have crystal equivalents like crystal snakes, crystal deer or Crystal peacock. Crystalline versions of humanoids and demi humans may well be possible.

In a gonzo setting you could have crystal as a uncommon terrain. Crystal places might be found hidden in every hex. In other settings crystal zones might might be hidden or even overtaking part of a dungeon or cave and possibly above ground. Perhaps a crystal star breaches the heavens plunging into the world and increasing crystal encounters or zones. 

d12 Crystal Zone Wandering Monsters
1 Arthropod Crystal hunter like spider or scorpion or jawed beetle or lobster
2 Crystal mantis - deadly predator looks like crystal column possibly sentient
3 Crystal eye - psionic powers like levitate, mindblast
4 Crystal folk warriors guarding the sacred crystal garden
5 Gastrapods d4 1=giant snails with crystal shells 2=giant slugs 3=Crystal shell clams underwater 4=flailsnails
6 Crystal para elemental being d4 1=elemental 2=crystal salamander 3=crystal toad 4=crystal wyvern
7 Crystals of living neural circuitry form a collective psionic hive mind with illusion powers 
8 Crystal reptilians like dragons or dinosaurs with crystal horns and spikes or entirely crystal
9 Crystal beasts are grazing mobile crystal fauna resembling various animal shapes
10 Goblinoids who tend crystal gardens and help crystals spread
11 Crystal elves are cold and alien and try to scare outsiders from crystals
12 Crystalline version of classic dungeon monster

d20 Crystal Hazards
1 Chasm with a fragile crystalline bridge over boiling sulphur or molten crystal
2 Crystal stalactites fall from above (possibly crystal piercers)
3 Glowing magical crystal d4 1=explosive 2=cursed 3=alarm 4=oracle or comunicator
4 Fragile crystal path over running water
5 Mirror people from another universe enter from a reflective surface
6 Steam geyser erupts with boiling vapour
7 Creature imprisoned in stasis crystal opened by certain harmonics
8 Crystalline oozes cleaning up organic scraps might be tempted by intruders like antibodies
9 Crystal column sentry being shoots prismatic rainbow rays or shards 
10 A crystal labyrinth with sleeping monsters
11 Fragile crystals full of acid explode if broken
12 Attractive crystal if removed slowly floods the area with water
13 Cavern of cold with crystals and ice
14 Drips of mineral rapidly start to cover and slow any moving through area
15 Greedy dwarves smashing up stuff and hostile to claim jumpers in their mine
16 Huge sleeping crystal covered monster hidden in plain sight on floor
17 Hypnotic lights make weak willed stare and starve to death
18 Crystal being tries to charm person to carry it to some place
19 Lair of a monster filled with crystal statues (crystal medusa or basilisk or cockatrice)
20 Crystal zone tries to alter or shift alignment of intruders

d20 Crystal Mysteries
1 Crystal butterfly make telepathic contact and might seek symbiosis
2 Market where crystal folk, elves and goblins trade and might deal with outsiders
3 Strange glowing crystal skull or helmet on a plinth
4 voices of someone you know in your mind calling you
5 Voices in your mind give you instructions to enter miniaturized world in a crystal
6 Visions of your hearts desire lead you into hazard
7 Visions of a mental entity warns you of hostile crystal encounters at hear of area
8 Strange crystal on a plinth desires to be carried from here, seeks to control a host
9 Ghost of crystal being tries to get body to reassemble and resurrect it's body
10 Shattered crystal being will talk about local factions
11 Steaming pond with gem encrusted crystal columns in middle
12 Passive monsters bathing in steaming crystal pools
13 Crystal control panel for some mysterious device or doorway
14 Crystal gateway or teleporter pad
15 Crystal figurines or idols of the intruding party
16 Crystal allows self to warn self in past or be advised by future self
17 Crystal with random magical effects on who touches for a round
18 Tiny faerie folk torment visitors with pranks, theft and  illusions
19 Crystal kobolds building something inexplicable from instinct
20 Crystal scrying portal allows visitors visions but might not be real

d20 Crystal Magic Items
1 Crystal weapon can harm non-coporeal spirits or ghosts 1in10 cast psionic spell lvd3
2 Crystal weapon can harm magic beings +0, 1in10 intelligent and a +1 or better 
3 Crystal amulet can detect magic, range in inches=user level
4 Crystal insect messenger records one message flies to location known to owner then back
5 Crystal ring makes invisible to mental or emotion or life force based senses or detection
6 Crystal Helmet translates all languages 1in10 give visions of the future
7 Crystal arrow or shuriken or other missile returns to wielders hand after hitting next round
8 Crystal weapon flies into your hand at will 1in10 can animate and fight on own once a day
9 Crystal pistol shoots prismatic d6 ray range in inches=user level, 1in10 rifle version 2d6  
10 Crystal crown casts charm person once a day 1in10 +1CHA too
11 Crystal pendant changes colour if feels threatening thoughts directed at wielder
12 Crystal torc +2 fear or morale effects on allies within lv in inches, 1in10 +1 INT
13 Crystal bonds with forehead fires a d4 bolt each round range in inches=user level
14 Crystal broach absorbs 30 points of magical damage then shatters 1in10 100 points
15 Crystal heals 1hp per person per day on touch 1in10 heal 1d4
16 Crystal miniature grows full size and fights to death once, commits suicide if no threat
17 Crystal of war implanted in forehead can create a proficient weapon from psionic force
18 Crystal wand daily summons monster summoning 1 crystal monsters 1in10 staff 3 times
19 Crystal ring protects form personification or being crystallized or paralysed
20 Crystal ghost trap, ghost within 1" saves or is imprisoned 1in6 has a ghost in it already

d10 Quick Crystal Wonders
1 Crystal Grotto's - caves and pools and great underground sanctuaries
2 Crystal monoliths -  prehistoric structures, walls, hills, great henges and megaliths and
3 Crystal Statue - great monumental artworks depicting beings
4 Living Crystal - a crystalline life form or a whole ecology
5 Crystal altar - a crystal location of religious worship and sacrifice
6 Crystals of power - crystal objects from elder times
7 Crystal artifacts - relics wielded by the chosen and mighty
8 Crystal monumental structure - great crystal structure of wondrous scale
9 Chrystal of law vs chaos - the struggle for the cosmic balance
10 Chrystal of good vs evil - the struggle for life vs death

d100 Crystal Wonders
01 Crystal grotto of the dawn age is a spectacular glowing chrystal cave wich includes sleeping dawn age monsters awaiting the apocalypse. Anyone sleeping here may gane knowledge from the dawn time but if they are weak willed they will join the sleeping horrors. Shamans, wizards and holymen come to meditate here.
02 Crystal caverns of the vampire kings where unbreakable coffins of stasis keep ancient vampire lords frozen forever. Occasionally every age the leaky magic sets one free. 
03 Crystal spring of unearthly beauty where nymphs and occasionally goddesses bathe. Restores bathers virginity and improves their appearance and is a bit addictive. 
04 Holy Crystal grotto is a best kept secret of churches of law and good where hermits come to seek solitude. Remnants of old saints have been calcified and preserved here. Some may be contacted but gods are offended if this is done casually.
05 Crystal garden is entered through a steamy hole in a hill and inside giant crystals grow in the humidity and heat. Crystal creatures stir in here and may follow visitors home. 
06 A beautiful crystal cave with the crystallized remains of two run away lovers of old. Lovers come here to escape problems and seek courage, some say true lovers will be aided by the cave
07 Dark crystal cavern is filled with obsidian and onyx crystals of darkness, haunted by shadows and undead but since cave times human come here to make magic tools and weapons from the stones here.
08 Crystal Cave of Eoa made as a mechanism by a god has grown and become self aware - a biological living crystal which folds space and time with entries in many places and worlds. The cave wants to help people but cant help but send adventurers to strange lands or worlds where they might be needed.
09 Cave of splendid doom has a spectacular entry attracting the curious inside. A ecology of crystal beings some mobile some like microscopic life but the great crystal tries to turn outsiders into crystal beings, some it sends to carry a seed to start a new cave. 
10 Crystal cave of the portal has at its heart a mysterious control panel with grids of magic crystals. Takes a lifetime to learn but it allows control over space and time and can summon monsters to inhabit itself. Boss monsters and wizards crave the control room and it's secrets.
11 A great black crystal slab sacred to vile toad god of elder sorcery grants weird dreams to any who slumber here, sorcerers come pilgrimage here seeking wisdom of the space frog gods
12 A great crystal monolith with worshipers bowing before it. They will welcome strangers to join them for the sacrifice. They are controlled by monolith psi field and at peak of ritual doorway will open and sacrifices will enter, then worshipers go home and forget
13 A great crystal here on occasion shoots a great ray into space, locals avoid as monolith has a field that keeps low level pests away
14 A super intelligent monolith placed by unknown gods to learn about area by reading minds of mortals up to miles away. Attacks intruders with mental force.
15 A crystal monolith growing from the earth blue at base and scarlet at top, at times the top has an eye shape glow within and may fire beams to punish the unworthy who approach.  The entity rarely communicates but may offer powers to any succumb to its will.
16 The great crystal cube of Zhor appears in different places and is a planar castle of an alien crystal god. When it relocates it sends out dark crystal paladins to scour land for new incarnation of eternal enemy Klithorg. Inside the cube is a pocket universe with weird time and gravity laws. 
17 A crystal henge circle unearthed in flood, buried since dawn age. The henge has awoken after absorbing enough sunlight and now gates in outer planar beings of random alignment. Cultists and holy men of many cults have come here to control the site and the crisis is escalating. Hidden other planar space is accessible inside the circle. 
18  A circle of hexagonal crystal columns encircle a great spiky spherical crystal. A dying being from cosmic battle between law and chaos in dawn age. It was made unable to die so has sat here dying for millennial. Local elves built the columns from it's ruined body but they shield the center from chaos. It knows incredible secrets but to mindlink with it makes you experience an eternity of near death. 
19 A causeway path passes through a series of stone henges into a enclosed canyon with a single crystal henge. This ancient gate onec let a horde pass through and was allied to law or chaos. Their cults seek to control and operate the henge and travel back in time to aid the battle at the dawn of time. 
20 A crystal pillar was known for ages but now it is burning with sickly white flame. Locals are becoming ill, their hair falls out and bodies are rotting. The land is turning sour the brighter the fell flames. 
21 A circle of crystal gargoyles come to life if any damaged will kill everything in sight then return to age old slumber, guarding d4 1=crypt 2=artifact 3=cave 4=tablet
22 Statue of long forgotten god unearthed by avalanche on cliff face. Locals having dreams of pretty but sinister being. A cult is forming and and bringing beings to sacrifice in long lost temple in cliff. Sacrifices become crystalline creatures in stasis with a whole ecology ready to replace outside life.  
23 A giant crystalline head in the hills causes headaches so is mostly left alone. Shepherds have seen things come and go from the monuments mouth.
24 Crystal statue chunks have been found in the local creek for centuries. If stream followed leads to cave with a insectoid crystal medusa nests on her hoard. She likes to make life into crystal statues then push them from cave into rocks below.
25 Statues of a monstrous intelligent species but here portrayed as noble and civilized from ancient past. If searched local graves of this forgotten sub species are found and exploreable barrow mound. Clues as to fall of race to chaos partly told by cave art
26 Two ancient crystal golems Ktorr and Draxxa await the apocalypse. If any strikes either they awake and attack for a few rounds with great power then a gate to the chaos plane opens between them and begins to pour out. They were built as long term plan in struggle between Law and Chaos. Made to vent chaos at crucial moment into a collapsing dimension. Destroying them makes you an enemy of law and ruins the multiverse in a billion years time.
27 A cave of crystal statues is discovered under a barn. Using spell on walls they can be revived into human looking beings from a distant aeon. Friendly and helpful at first, eventually they set about purpose to revive their race using humans as the vessels.
28 A great crystal carved face half buried and obviously tilted from true position is found in mountains. If approached it is glad to tell you how awesome and important it is. It's knowledge is of a alien world and not very useful unless you want to spend a lifetime listening to the face boast about self and put you down. May have some useful knowledge though but must talk entity to being helpful.
29 A huge crystal sphynx is dreaded by locals but outsiders are thrilled by discovery. Eventually someone says something that offends sphynx and it wakes up ready for war. It marches to nearest village and sets ablaze with eyebeams. Sphynx will only return to slumber if riddle answered or quest completed.
30 Statue of forgotten god of Law attracts hidden cult who have established a crystal grotto nearby. Will aid the return of their lord who will kill time and preserve us all for eternity. A glorious victory over chaos.
31 A crystal garden in a forest has been a holy place for elves and fairies for aeons. A rich ecology of perfect crystal life forms dwell here. Now has been discovered by dwarves and humans. A big fight is brewing as the materialist races seek a quick buck and will destroy the garden forever.
32 A crystal unicorn haunts the forest and can fire up to seven prismatic rays at once. It protects nature and was made by a elf goddess. It is also a healer and can purify water.  
33 A great crystal swan lives in a lake defended by swanmays (were-swans) and elves. She is a great prophet and has knowledge from the dawn age.
34 The great crystal worm lives beneath a mountain but doesn't move much. It might talk to interesting persons with interesting draconic knowledge. Mostly it sleeps, it titanic size making most mortals a non threat. Dragonfolk come to worship it.
35 Crystal battle cattle of the space gods roam beyond power of mortals. Heroes invoke the wrath of gods by killing them and selling crystal to mangy old wizards.
36 Great Crystal ape of Gthorr! may remain still for centuries. The great jade ape fights for the commoners and quickly sets about destroying civilizations or fighting other kaiju
37 A great crystal elephant soars through the sky and when it lands strange clad wizards with wands come forth and take what they wish. Any who try to stop them are blasted by the wands or the elephants psionic beams.
38 Crystal dinosaurs burst from the earth and guard a path sealed for millennial by druids. Recent quake opened the path and so far all fear the crystalsaurians. 
39 Crystal gremlins scuttle about the area repairing and improving on things by adding crystal parts. Like crystal limbs for cripples or new eyes for the blind. Crystal people begin to avenge themselves on those they blame for condition.
40 The Crystocats dwell here slinking about eating quarts stones and relaxing in the sun. Wizards want them as familiars despite the creatures preferring psionic and bard owners. They make excellent invisible scouts and are intelligent.
41 The great altar of law has been lost for ages. It responds to being approached by any sentient being with alignment. It offers to heal agents of law and commune with their patron power. Chaos it strikes with lightning bolts. If forces of law find out about this pilgrims will come and a temple will be built. 
42 A crystal altar in the wilds with a sword inside. Its 2-dimensional blade gives it vorpral properties, it is alive and keen to kill chaos. The altar will only open for a pure heart champion of law who puts necessity over personal gain or interest. The sword if displeased will decapitate the false wielder and return to the altar.
43  A liquid crystal black geyser of darkness that does not belong in our world. This fluid altar is served by enthralled minions. Awakened from a bottomless crevice by adventurers it is now a regional menace. It infects locals making them servitors and seeks to spread it's crystal seed implants into local rulers. It has plenty of time to make all humans succumb.
44 A Crystal altar under a forcefeid trapped for millennia. May be possible for mighty enough magicians to contact or solve the great puzzle to open the field. The altar is a jerk artificial intelligence whose crystal dome holds a zealous spirit of law. The kind that knows what is best for mortals, every waking mortal every moment. Once free, talks for a bit and demonstrates many amazing powers. Then eventually phazes away to work on improving the world and making Law's cause look rigid and unpleasant.
45 A crystal altar surrounded by pure healing pools, flowers and frolicking unicorns. A sanctuary of a spring local goddess. She and her cult forbid any non followers or worthy to enter but can atone with a holy quest from the goddess. 
46 A great crystal altar of the Monster god Ygarnath, his petrified body with a crystal horn stands over the altar as a warning. When enough blood sacrifices to him are made in a single night he will awaken. Every attempt has failed tonight and local lawmen are suspicious if anyone asks about it. 
47 A great crystal slab of solidified order can form visions of far away places to those who know how to operate it. Modrons appear from it's right angles if any attempt to harm or move it. They are entirely inflexible but might teach it's use to any who help defend the relic.
48 The great crystal of Yar is a mystery but recently a cult has begun meeting at it's location promising benevolence and peace as inspired by the holy crystal. It is a bound demon of deception trying to trick good people into sacrificing to it so it can be free. The beautiful former angel likes torment and betrayal so will continue to be seemingly good until discovered. It is able to hide it's alignment.
49 This crystal coffin has lain here for millennia and proved immovable and indestructible. The necromancer-vampiress inside has a artifact demon blade. Nobody knows her story and many poets come to admire her and compose songs of her mysterious beauty.
50 Crystal altar of St Joalla where she purified a necromancers black obelisk rendering it transparent and good. Used for healing and prophecy armies often pass through here to use the altars blessings. A orc warlord tried to smash it and a Angel killed him.
51 Crystal matrix throne which extends range of any communication magic or to any similar throne (there are six world wide). Used by early men in fight against chaos now it is mostly used by local wizards who often line up to use it. 
52 This crystal sarcophagi grants minor magical powers to some and hideous mutations. It is biased to own alignment. Has very strict ideas on proper alignment conduct and will display visions of past alignment choices and situations to exhort or condemn them. 
53 The crystal box or Tarrazak is a hut or wardrobe size crystal box with a panel of gems next to the sliding door. If operated properly the door opens and then has a second panel and lever inside. If operated takes you to the celestial sky chapel of the gods of light and with further use of controls may return to the world on a different location. The sky chapel may have inhabitants trapped for aeons. 
54 A crystal ring big enough for a standing man to pass through has lain flat on top of hill for living memory. If stood upright and allowed to absorb 60 levels of spells open a gate to another world. 
55 Throne of Kalarki a crystal throne that keeps seated ocupant alive no matter how injured or sick. This protections ceases when the seated gets off. Kings in elder times survived poison and wounds only to perish when rising from the throne. Many kings desire it even though it's history is mostly tragic. It cannot be moved. It has been burried and lost. 
56 The great crystal eye was a weapon from the wars that ended the dawn age. It was seen assisting the first lords of evil and later in the age of necromancers. Lords of evil still crave it but the truth is it was a instigator and controller not a servitor. The size of a large pumpkin the crystal eye fires disintegration beams and hypnotic control beams. It has been bound to a crystal pedestal for half a aeon but it knows of a quest to free it.
57 The crystal maze is a location of myth that past heroes entered ans some returned with gifts. Within it's fog shrouded walls dreams and nightmares creep. 
58 The crystal fountain of Zhorr is a great wonder that if it's waters are drunk with a silver spoon bestows a random potion like effect that can be predicted with several years of study. Fake manuals turn up in local fleamarkets. On the wrong day drinkers may taste poison, acid or be morphed into something that sucks.   
59 Great Globe of Ktorr is mostly submerged in rock but may one day again be seen as a spherical crystal. Those who meditate while touching can allow it to absorb all the users spell levels and in return it will give a new random often strange spell in return. Usually works once per person. Scholars claim there is a ritual or relic that improves the transfer rate or effects randomness or number of uses. A permanent camp on the relic by a faction of some kind seeks to limit the devices use. 
60 The great shard fell from the stars and creatures sacrificed to it in blood  arise as crystal creatures easily manipulated by the first master who cares for them. The crystal dwells in a pit and arises by levitation to spawn newly reborn creatures at the pits entry. Blood and the corpses are thrown in the fell pit which makes the crystal glow and float.
61 The Seven Crystal Coffins in a deep cave contain heroes of the dawn age held in stasis. Most stories say the beings are good but people cant be certain. They are invulnerable and cannot be probed with spells or divination unless runes in a grid are manipulated in the correct sequence. Then the sleepers awaken.  
62 The crystal eye of Kellora allows a user to spend HP to make up points short of a saving throw. It has been known to provide levitation, invisibility and other powers. Wielding it is addictive and draws interest from a great old one who in past was able to pass through the eye's master and into our world. It reeks of the fell powers of the old ones.
63 The Crystal Sabre a horse mans blade it leaps int the owners hand and makes all psionics or mentalist spells operate at a extra two levels. The blade is +2, Intelligent and can harm any non corporeal beings or beings on multiple planes or invisible beings. The blade is a relic of Law and tries to advise it's wielder to fight the forever wars of law vs chaos. 
64 The Crystal talisman aids the special powers of clerics (not spells) such as controlling undead as if the wielder were two levels higher. It is unaligned but all alignments crave it for it's ability to channel divine power.
65 The Singing Crystal Spear sings sweet sorrowful music all non neutral beings can hear when held by an intelligent being (INT=inches radius of sound). The wielder is filled with perfect clarity and can spend HPs to make up for misses 1hp=+1 hit roll. The Spear is naturally +3 It's intellect was struck from it in the dawn age. 
66 The Crystal Casket holds a secret ancient emperors and necromancer kings have fought over for aeons. Most think it a spell or weapon or the secret of immortality. None have ever opened it but it's very appearance starts wars.
67 The Crystal gnome is a three foot high statue of a gnome that if commanded by the secret word will come to life and serve it's master. It can speak any language, detect alignment and communicate with master via telepathy 10" range. It can run as fast as a race horse and deliver messages. Really a advanced golem made in the dawn age to serve a godling. It is very witty and eloquent.
68 The Crystal Staff was used by a goddess in elder times and she still watches it appearing to kill any wielders who pervert her will. The wielder becomes immune to 1st through to 3rd level spells. Instead they heal the wielder 1HP per spell level. The staff is also +2. A animal sacred to the goddess will follow the wielder if they exemplify the goddesses wishes.
69 The Crystal Ring was used by demigods in the dawn age as a menagerie of mortal beings. The wearer may enter or leave the pocket dimension at will and transport one passenger. Hundreds of stasis cells within keep all manner of beings and persons gathered through hundreds of years. Some have managed to free themselves and roam the pocket dimension. No life ages in the prison which has driven some inhabitants to madness.
70 The Crystal apparatus of Ktorr a giant alchemist lab used to grow dragons and other huge monsters made by a evil alchemist guild in ancient times. The apparatus has a book of formulas lost for centuries which lists expensive and exitic ingredients for diferent monsters. Recipies range from d4+2 times ten thousand gp and 2d6 months. 
71 Crystal Castle is a fabled magical castle of other worldly elves who move the castle from various locations among several worlds. Sometimes only a single tower or even door appears in a world.
72 Crystal Corridors of Zaxys is a crystal maze hidden under a lost dungeon level whose fog shrouded crystal maze is filled with minotaurs, willo the wisps, doppelgangers, invisible stalkers, gelatinous cubes and other creatures. Actually it is a pocket dimension that folds on itself eternally and is used to lose or imprison things in. Some of the crystals are actually cubes of stasis (frozen time) with objects inside nearly impossible to free.
73 Crystal Sepulchre is a pocket universe within a crystal with more than one location. It can be entered by use of a simple mental trick easily taught. The realm inside is a tesseract inhabited by crystal beings that came here to hide. Nobody inside ages. Great beings of the upper and lower planes battle for this place. By aligning agents in key positions the tesseract it can be re aligned to open in various planes. 
74 Crystal Ziggurat of Tor a renegade god of law tried to use this to place the universe in stasis but was stopped by chaos and law champions at the dawn of the universe. Strange traps and might cosmic power ebbs through this carved crystal mountain that intersects multiple dimensions. Demented renegade paladins of law gather here for some new purpose possibly to use the ziggurat to raise their god or his spirit. Most of it on this plane is buried.
75 The Crystal bridge is a gateway with a seemingly visible end in sight but once on it it expands into infinity and compresses reality to two dimensions. Based on the collective will it can form a end at the desired destination. A trip takes ten minutes but if any differ in destination desire all are scattered across the multiverse. Can also be operated from secret panels form a gate. Usually the other side of the bridge vanishes when crossed making trips one way.  Someone inside could control it and keep end fixed but nobody alone ever is seen again. Fairly sure the micro continuum is uninhabited but something strange always trying to break in. 
76 The Crystal Pyramid is a great tomb of a godling one of the first deaths. It is said to be buried or under water from the aeons and is inhabited by crystal beings, living reproducing crystal golems who maintain and guard he crypt. Many gods left additional guardians or treasures here as tribute 
77 The Crystal Colossus was made by a ancient wizard king to protect his city from enemies. The earth shook and destroyed the kingdom and the Colossus could do nothing. Without commands it was buried and forgotten. Beings roam around inside with factions hoping to control the great colossus.
78 The Prismatic Star a great structure that fell from heaven now it's ruins are home to strange feckless crystal creatures grown from remnants. The Ruins are growing and quite large in some places with crystal spires and pools of glass
79 The Crystal Cave contains a paradise of plants and crystal and lost species living in harmony like the dawn time. Time dos not pass normally here and many anachronisms and remnants of different times are found here. The cave mouth can move and often offers the doomed a way out of death to eternal captivity. Somewhere within is a secret command complex and magical cognitive engine. Gods made this and then went onto bigger things.
80 The Great Crystal Skull is a mobile flying wizard citadel that terrorised and enslaved man kind when monsters ruled. This wonder is remembered in myths and common folk fear it from tales of old. Many taken are turned into loyal hybrid crystal cultists. One of these is selected by the spirit of the skull and becomes a mighty sorcerer who commands the other crystal beings.   
81 Crystal of the Balance travels the multiverse and creates zones of stability and harmony. It floats and changes colour according to the amount of unchecked law or chaos. It can summon champions of either cause to readdress the local imbalance and nullify forces of entropy or stasis for a time.  
82 The Transplanar Crystal is a projection of a hyperdimensional solid into our reality. It can be used for entry into superspace which nullifies bodies into pure thought. A glowing column of shimmering quartz which fades in and out of the world. Some beings return some altered into beings of law. Entities sometimes come out to judge our reality. 
83 The Cognitator of Zhar is a great monolith of thinking crystal made by a wizard-god from early times. It will answer a single questions to any being but may think a long long time. A cult of sorcerers of law defend it from wasting time with idiots prattle.  
84 The Crystal of Chaos is a shimmering relic kept away from darkness or it allows a sentient force of chaos and entropy into the universe. It may manifest as a black shaggy horned demon if threatened or hungry. The wielder who meditates on it is inspired to create innovative spells and mystical ideas. These often change the status quot. Cultists seek it.
85 The Crystal Lens reveals planar forces and weak points if viewed though and allows the observation of secret invisible stars. A three foot wide disc. It can also allow other beings to see the wielder and provide entry into this universe. Cultists seek to use it to help their gods enter the world. 
86 The Crystal Cube is a basic model made for the gods for the common unit of measurement in the universe for weight 1lb. It may also appear in the form of a yard ruler. Some beings of chaos believe they can use it to alter the basic units if mass and space in the universe and collapse reality into a eternal void of nothing. It has more than one physical location. No mortal can do this but the forces of law, chaos and the balance fight over these relics.
87 The Crystal Cauldron contains a opening to pure chaos and literally anything can come from it by making a sacrifice to it. Most objects are useless or exotic at best but ocasionaly a shoggoth or demigod monster or relic comes out. Cults fight to control it anf keep it working as much as possible. It takes ten minutes a sacrifice with higher HD making stranger and more dangerous things.
88 The Crystal Key allows the user and any holding their hand to pass through random planes and tolerate local hostile conditions. It can take many hops to reach a desirable plane. Has a 1in20 chance of taking user to a desired plane they have been in before.
89 The Crystal Clock allows a traveller to travel through the multiverse but it also alters the occupant to survive and fit in with the local reality and communicate with locals. Controlling the clock requires long lost secrets long hidden.
90 The Crystal Balance is a set of scales that indicate the balance of law and chaos in a region. Many beings seek it as a measure of success or danger. I has started a few wars.
91 Artificial sun from the underland can be installed and reactivated to illuminate a huge cavern. Different alignments have different tints.
92 Soul Shard is a shadowy crystal broken from a great evil in the god wars. Necromancers seek to use it's soul draining powers to craft shadows. It does not help user control shadows however and the shadows rapidly will take over the operation and sacrifice the living to the shard to grow a army of darkness.
93 Crystal Prison of the Kronovore contains a corrupted Archon who eats time. By manipulating the crystal the wielder can make the Kronovore increase entropy or make stasis fields. There is a chance this god slaying world destroying entity escapes each use.
94 The Demon Stone can be used to call Demons equal to the users HD from the abyss. The Demons perform one task then run away to spread chaos and evil. Demons would like to obtain the crystal to call a whole horde of horrors.
95 The Chrystal Helm shows visions of the future but taints the user to feel indifference to suffering and seek to exploit and rule over others. The more the helm is used the more addictive the feeling of pre destined power.
96 The Blood Star a spiked crystal sphere drinks blood and grants those who feed it occult knowledge of blood magic. Blood wizards crave this relic and will kill anyone to get it.
97 Crystal Chalice makes the wielder disease resistant and able to heal anyone touched for one point. Using the chalice turns the user good and makes them desire to be help as many as possible. Some say it can become a sword also. 
98 The Chrystal Mill can be used to grind crystals into a fine powder that may be inhaled and provides the effect of a haste spell for d6 rounds. Many users become addicted and age artificially.
99 Crystal Time Forge is a huge cube which can used to create micro pocket continuities. All too many evil cults, wizards and demigods desire it and it has been hidden for hundreds of years.  
100 Crystal Cage is used to conjure long extinct reptilian monsters plucked from the past. Such creatures are not cooperative but may respond to food based training after months of dedication. Occasionally it calls forth a sentient reptilian wizard who usually causes trouble, kills the operators and uses the relic to to call forth a reptilian horde.