Pezzottaite

 Mohs scale
  7.5 - 8.0
 Specific Gravity
  2.90 - 3.14
 Refractive Index
  1.598 - 1.620
 Crystal system
  Trigonal
 Chemical Composition
  Cs(Be2Li)Al2(Si6O18)

 Sign of Zodiac (Click on the constellation for more information)
 Chakra (Click on the chakra for more information)
 Birthstones (Click on the month for more information)
 
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