Origin
Switzerland
Canada
Color
Brown, Brownish, Yellow, Black, Reddish
Yellow, Brown, Red, White, Green, Reddish, Black
Streak
White, gray
White
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
3.7-3.83.89-4.18
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal, Uneven
Cleavage
Distinct on {010}
{0001}, {11 2 0} imperfect
Mohs Hardness
7-7.55.5
2
10
👆🏻
Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Resinous
Vitreous, Resinous
Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
-
Dispersion
0.020.17
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.736-1.7621.687-1.723
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Trigonal
Birefringence
0.009-0.0150.028-0.030
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Protection
Optimism
Healing
Physical healing
-
Qualities Associated
Protection
Transformation