Gem

Gem or Gemstone may refer to:



Crystal may refer to:
 * Adventure Crystal, in Minecraft Earth
 * Amethyst Crystals, an upcoming block announced as part of the Caves & Cliffs update
 * Crystal was a block Notch mentioned adding.
 * Amethyst Crystals, an upcoming block announced as part of the Caves & Cliffs update
 * Crystal was a block Notch mentioned adding.

宝石