Crystallid
Crystallid refers to a fictional material or entity often found in science fiction and fantasy literature. The term typically denotes something that is composed of or possesses properties similar to crystals. This can manifest in various ways, such as being a crystalline life form, a substance with a crystalline structure that grants it unique abilities, or a weapon or tool forged from crystal-like materials.
In some narratives, crystallids are depicted as sentient beings whose bodies are made of interlocking crystals.
Alternatively, crystallid can describe a substance or mineral with extraordinary properties attributed to its crystal structure.