Origin
Sri Lanka
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Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Streak
White, Brownish
Blue, White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
insoluble
Gelatinises in acids
Durability
-
-
Specific Gravity
6.86-7.032.4-2.5
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Uneven, Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Distinct on {110}
Mohs Hardness
6-75-6
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Luster
Adamantine, Greasy
Vitreous, Greasy
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
None
Dispersion
0.070.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.990-2.1051.50
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Isometric
Birefringence
0.096-0.098-9999
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
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Respiratory
Poor
Good
Reproductive
-
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Digestive
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Psychology
Focus
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Communication