Origin
Switzerland
Southern and central Africa
Color
Brown, Brownish, Yellow, Black, Reddish
Colorless, Brown, Greenish, gray
Streak
White, gray
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
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.7-3.82.62-2.67
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven
Cleavage
Distinct on {010}
From the Greek, oligos and kasein, little cleavage.
Mohs Hardness
7-7.56-6.5
2
10
👆🏻
Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Resinous
Vitreous
Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.736-1.7621.538-1.550
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
-
Birefringence
0.009-0.0150.010
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
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-
Respiratory
Good
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Reproductive
-
-
Digestive
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Psychology
Protection
Harmony
Healing
Physical healing
Emotional healing
Qualities Associated
Protection
Harmony