Origin
Sri Lanka
Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Colorless, Yellow
Streak
White, Brownish
White
For which Rashi?
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-
Planet
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-
Element of Planets
-
-
Energy
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-
How to Wear?
Finger
-
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Ring Metal
-
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Deities
-
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Not to wear with
-
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Powers
-
-
Birthstone
Planetary
-
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Talisman
-
-
Tenacity
Brittle
-
Solubility
insoluble
-
Durability
-
-
Specific Gravity
6.86-7.032.59-2.60
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
-
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
{001} Perfect, {110} Distinct, {101} Distinct
Mohs Hardness
6-76-7
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Adamantine, Greasy
Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
none.
Dispersion
0.070.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
TransparentAnthony et al
Refractive Index
1.990-2.1051.583-1.614
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
0.096-0.098-9999
0
0.296
👆🏻
Clarity
Transparent
TransparentAnthony et al
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
Supports heart health
Promotes mental clarity
Respiratory
Poor
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Reproductive
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Digestive
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Psychology
Focus
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Creativity