Color
-
White, Colorless, Blue, Red, Green, Yellow, Violet
Specific Gravity
3.32-3.47
-9999
Mohs Hardness
-9999
-9999
Chemical Composition
Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.
MgAl2O4
Pleochroism
Weak; present colour lighter and darker
-
Transparency
TranslucentWalter Schumann
-
Refractive Index
1.700-1.725
-9999
Birefringence
0.001-0.012
-9999
Clarity
TranslucentWalter Schumann
-
Cardiovascular
Promotes peace and tranquility
-
Respiratory
Excellent
Good
Qualities Associated
Creativity
Protection