Origin
Switzerland
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Color
Brown, Brownish, Yellow, Black, Reddish
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Streak
White, gray
Blue, 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
Brittle
Solubility
-
Gelatinises in acids
Durability
-
-
Specific Gravity
3.7-3.82.4-2.5
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
Distinct on {010}
Distinct on {110}
Mohs Hardness
7-7.55-6
2
10
👆🏻
Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Luster
Resinous
Vitreous, Greasy
Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
None
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.736-1.7621.50
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Isometric
Birefringence
0.009-0.015-9999
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Protection
Communication
Healing
Physical healing
Emotional healing
Qualities Associated
Protection
Communication