Origin
Brazil
Switzerland
Color
White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
Brown, Brownish, Yellow, Black, Reddish
Streak
White
White, gray
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
-
-
Durability
-
-
Specific Gravity
2.65-2.903.7-3.8
1
7.18
👆🏻
Fracture
-
Subconchoidal, Conchoidal
Cleavage
{001} Perfect
Distinct on {010}
Mohs Hardness
-99997-7.5
2
10
👆🏻
Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Luster
Pearly
Resinous
Pleochroism
-
X = colorless; Y = pale yellow; Z = golden yellow
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
Translucent
-
Refractive Index
1.534-1.6011.736-1.762
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
monoclinic
Birefringence
0.0500.009-0.015
0
0.296
👆🏻
Clarity
Translucent
-
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
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-
Respiratory
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Good
Reproductive
-
-
Digestive
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Psychology
-
Protection
Healing
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Physical healing
Qualities Associated
Emotional Healing
Protection