Moldavite

 Mohs scale
  5.5
 Specific Gravity
  2.32 - 2.38
 Refractive Index
  1.48 - 1.54
 Crystal system
  Amorphous
 Chemical Composition
  SiO2(+Al2O3)
 Sign of Zodiac (Click on the constellation for more information)
  All
 Chakra (Click on the chakra for more information)
  Heart Chakra
 Birthstones (Click on the month for more information)
  None
 
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