Crystal monster?

[redfdf]

I'm looking for monsters that look like crystals, and after searching, I found Crysmal and Psion-Killer. Are there any other monsters that resemble crystals? Gem Dragons seem too much like living creatures to me. Preferably from 3.x and Pathfinder, but 3rd party publishers and other editions are also acceptable.

[Biggus]

There are the gemstone golems in Monsters of Faerun and the crystalline troll in MM3.

For future reference, there's a complete list of 3E monsters here: https://web.archive.org/web/20161031212207/http://archive.wizards.com/default.asp?x=dnd/lists/monsters

[Beni-Kujaku]

I'm looking for monsters that look like crystals, and after searching, I found Crysmal and Psion-Killer. Are there any other monsters that resemble crystals? Gem Dragons seem too much like living creatures to me. Preferably from 3.x and Pathfinder, but 3rd party publishers and other editions are also acceptable.

The crystal beetle (https://www.realmshelps.net/monsters/block/Crystal_Beetle_Swarm), crystal sunflower (https://web.archive.org/web/20161031215702/http://archive.wizards.com/default.asp?x=dnd/psb/20040521b), Crystal Gargoyle (https://web.archive.org/web/20200314182842/http://archive.wizards.com/default.asp?x=dnd/psb/20021025c) and Sardorian Golem (https://web.archive.org/web/20161031215711/http://archive.wizards.com/default.asp?x=dnd/psb/20040123c) look like crystals. A Psicrystal with no master could be a monster (though not a powerful one). A demilich construct uses gemstones to trap people's souls. The Blackstone Gigant looks like Obsidian, and the Ethereal Ooze looks weirdly like a crystal, though it does not feel like it to the touch. Otherwise, Ice Mephits definitely look like crystals if you use the 5e art, but they really don't in 3e.

[Telonius]

Varakhuts (from Fiend Folio) are Inevitables that look a bit crystal-ish.

[MaxiDuRaritry]

Mirror mephits? They are constructed of flat planes that reflect light like mirrors, and they look crystalline.

Any [earth] creatures, such as earth elementals, could be composed of quartz instead of rocks and dirt.

[ShurikVch]

Crystal Screamer (Bastion of Broken Souls)
Crystal Stone Golem (Expedition to Undermountain)
Troll, Crystalline (Monster Manual III)

3rd-party:
Crystal Cat (Dragon #341)
Crystal Ooze (Tome of Horrors)
Crystal Snake (Shackled City Adventure Path, Dungeon #115)
Crystalline Cat (Dragon #304)
Figurine, Crystal (Denizens of Dread)
Living Crystal Statue (Dungeon #150)
Quartz Golem (Dangerous Denizens)

Other editions:
AD&D - Crystal Golem (White Dwarf #22)
AD&D - Crystal Ooze (Lost Caverns of Tsojcanth, Monster Manual II)
AD&D - Spider, Crystal (Dungeon #4)
AD&D - Crystalmist (Greyhawk Adventures)
AD&D - Crystal Drake (Dragon #146)
Basic Set (magenta box) - Living Statue, Crystal
Basic Set (red box) [Dungeon Masters Rulebook] - Living Statue, Crystal
Dungeons & Dragons Rules Cyclopedia - Statue, Living, Crystal
2E - Oozes/Slimes/Jellies, Crystal Ooze (Monstrous Compendium Volume One, Monstrous Manual)
2E - Puck, Crystal Drake (Great Wyrm) (Dungeon #33)
2E - Oozes/Slimes/Jellies, Crystal Ooze (Monstrous Compendium Volume One, Monstrous Manual)
2E - Crystalmist (Monstrous Compendium Greyhawk Appendix)
2E - Crystalle (Dragon #174)
2E - Spider, Crystal (Monstrous Compendium Dark Sun Appendix: Terrors of the Desert, Dragon #221 "The Ecology of the Crystal Spider")
2E - Fish of the Great Glacier, Crystal Nipper (Great Glacier)
2E - Crystal Golem (Dungeon #42)
2E - Statue, Living, Crystal (Mystara Monstrous Compendium Appendix)
2E - Figurine, Crystal (Ravenloft Monstrous Compendium Appendix III: Creatures of Darkness)
2E - Virus, Crystal (Ravenloft Monstrous Compendium Appendix III: Creatures of Darkness)
2E - Crystal Skeletons (Dragon Annual #2)
4E - Crystal Golem (Dragon #367)

[Beni-Kujaku]

The Susurrus also looks like crystals in 3e.

[Arutema]

Pathfinder: Carnivorous Crystal (https://www.aonprd.com/MonsterDisplay.aspx?ItemName=Carnivorous%20Crystal )

[Dalmosh]

Ectoplasmic Swarm (Complete Psionic)

[Dragonsworn]

Since mirror-like creatures have already been suggested, I will add Nerra (Fiend Folio p 127)

Also, I seem to remember a Crystal Snake/Cobra in the Shackled City adventure path.....could be mirembering though!

Edit: found it! Crystal Snake, p 325 (for statblock), an 18 HD CR 15 construct

[glass]

Shardminds from 4e and (apparently) 5e are crystal, and I do not think they have been mentioned yet.

[Biffoniacus_Furiou]

Does volcanic glass count? Even if it's not suitable, it could be adapted as needed:

Obsidian Ooze (https://web.archive.org/web/20201112012700/http://archive.wizards.com/default.asp?x=dnd/fw/20031123a):
This creature looks like a mass of obsidian with its edges polished and smooth. Yet when it moves, it gives the impression of a mobile snake made of glistening tar, with numerous razor-sharp lances of flexible obsidian writhing chaotically out of its mass.