DIOPTASE
- A rare mineral occurring as emerald green or blue-green crystals. It consists of a hydrated silicate of copper
- a mineral (a naturally occurring inorganic substance having a characteristic set of physical properties) [n DIOPTASES]
SCRABBLE® is a registered trademark, and all intellectual property rights in and to the game of Scrabble® are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, which is a subsidiary of Mattel Inc. scrabble-solver.com is not affiliated with SCRABBLE®, Mattel, Spear, or Hasbro in any way.