Origin
Switzerland
Southern and central Africa
Color
Brown, Brownish, Yellow, Black, Reddish
Brown, White, Greenish, gray, Green, Brownish
Streak
White, gray
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
3.7-3.82.9-3.5
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal
Cleavage
Distinct on {010}
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
7-7.55.5-6
2
10
👆🏻
Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Resinous
Vitreous, Pearly
Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.736-1.7621.603-1.690
1
3.25
👆🏻
Optic Character
-
Biaxial/+
Crystal System
monoclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.009-0.015-9999
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Enhances mental clarity and focus
Enhances brain function
Cardiovascular
-
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
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-
Psychology
Protection
Peace
Healing
Physical healing
Emotional healing
Qualities Associated
Protection
Self-discovery