Origin
Southern and central Africa
Sri Lanka
Color
White, Violet, Blue, Yellow, Brown, Brownish, Colorless, Greenish
Blue
Streak
White
-
For which Rashi?
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Sagittarius, Scorpio
Planet
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Pluto
Element of Planets
-
-
Energy
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-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
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Hephaestus
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
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Solubility
-
-
Durability
-
-
Specific Gravity
2.503.65-4.55
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
Distinct on {100} and {110}
None, but may exhibit slight parting
Mohs Hardness
5.5-67.5-8
2
10
👆🏻
Chemical Composition
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Luster
Vitreous, Pearly, Resinous
Vitreous
Pleochroism
-
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.540-1.5501.735-1.790
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Isometric
Birefringence
0.004-0.008-9999
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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
Optimism
Empowerment
Healing
Emotional healing
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Qualities Associated
Spiritual Growth
Transformation