Origin
Sri Lanka
Sri Lanka, India, Brazil
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Green, Brown, Colorless, gray, Yellow
Streak
White, Brownish
Brownish, White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
insoluble
-
Durability
-
-
Specific Gravity
6.86-7.033.55-3.73
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Conchoidal, Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
none
Mohs Hardness
6-77-7.5
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Adamantine, Greasy
Greasy, Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
None
Dispersion
0.070.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.990-2.1051.730-1.760
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
cubic
Birefringence
0.096-0.0980.020
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
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Respiratory
Poor
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Reproductive
-
Helps in digestion and alleviates indigestion
Digestive
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-
Psychology
Focus
Abundance
Healing
Emotional healing
Physical healing
Qualities Associated
Manifestation
Abundance