Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Southern and central Africa
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Colorless, White, gray, Brown, pink
Streak
White
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.26-3.363.05-3.08
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Irregular, Conchoidal
Cleavage
Good on {100}
None
Mohs Hardness
6.5-76.5
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
Strong
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Semitransparent
Refractive Index
1.656-1.704-9999
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Triclinic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
Birefringence
0.009-0.012-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentAnthony et al
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Empathy
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Emotional Healing