Origin
Austria
Switzerland
Color
Brown, Green, Brownish, Black, Yellow, 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
3.25-3.503.7-3.8
1
7.18
👆🏻
Fracture
Conchoidal, Fibrous
Subconchoidal, Conchoidal
Cleavage
{001} perfect and {100} imperfect
Distinct on {010}
Mohs Hardness
6-77-7.5
2
10
👆🏻
Chemical Composition
CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael 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
Vitreous, Resinous
Resinous
Pleochroism
Strong
X = colorless; Y = pale yellow; Z = golden yellow
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.729-1.7681.736-1.762
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.019-0.0460.009-0.015
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Calms digestive issues
-
Respiratory
Good
Good
Reproductive
Supports healthy digestion
-
Digestive
-
-
Psychology
Abundance
Protection
Healing
Physical healing
Physical healing
Qualities Associated
Manifestation
Protection