A crystal is a type of clear mineral.
The Traveler's homeworld had beautiful crystal cities. (TOS comic: "Dark Traveler")
Types of crystals[edit | edit source]
- Acta crystal
- bioelectronic crystal
- Denevan crystal
- dilithium
- Iotian crystal
- Maraji crystal
- Metebelis crystal
- rubinitite crystal
- Tallonian crystal
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