Astrology
Origin
Southern and central Africa
Not Available
Color
Greenish, Blue, Colorless, Green, Yellow
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Greenish, gray
Not Available
For which Rashi?
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Planet
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Element of Planets
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How to Wear?
Finger
Not Available
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Birthstone
Planetary
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Talisman
Not Available
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Physical Properties
Tenacity
Not Available
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Solubility
none
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Durability
Not Available
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Specific Gravity
3.17-3.24
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Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Not Available
Cleavage
(0001) indistinct
Not Available
Mohs Hardness
9-9.5
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Chemical Composition
SiCArthur Thomas , Gemstones (2009)
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Optical Properties
Luster
Adamantine
Not Available
Pleochroism
NilArthur Thomas
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Dispersion
0.10
5
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Transparency
Gemmological Tables (2004) More from other references
Not Available
Refractive Index
2.648-2.691
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Optic Character
Not Available
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Crystal System
6H polytype
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Birefringence
0.043
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Benefits
Physical
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
Not Available
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