Origin
Sri Lanka
Brazil, Colombia, Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Greenish, Blue, Colorless, White, Green
Streak
White, Brownish
White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
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Not to wear with
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-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
insoluble
-
Durability
-
-
Specific Gravity
6.86-7.033.08-3.12
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
ConchoidalWalter Schumann
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
{010} Perfect
Mohs Hardness
6-77.5
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Adamantine, Greasy
Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Weak: colorless-(greenish) yellow
Dispersion
0.070.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.990-2.1051.650-1.677
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
0.096-0.0980.019-0.025
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Communication