Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Sri Lanka
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Streak
White
White, Brownish
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
-
insoluble
Durability
-
-
Specific Gravity
3.26-3.366.86-7.03
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
Good on {100}
{100} imperfect, {110} indistinct; partings on {111} or {011}
Mohs Hardness
6.5-76-7
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Adamantine, Greasy
Pleochroism
Strong
Pleochroic haloes have been observed. Dichroic in yellow
Dispersion
0.020.07
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.656-1.7041.990-2.105
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Triclinic
tetragonal
Birefringence
0.009-0.0120.096-0.098
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Focus
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Manifestation