Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
China, Pakistan
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Red, Brown, Black, pink, Brownish
Streak
White
gray
For which Rashi?
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-
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
3.26-3.363.85-3.94
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
Good on {100}
{010} Good, {100} Distinct
Mohs Hardness
6.5-75-5.5
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous
Pleochroism
Strong
DistinctArthur Thomas
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.656-1.7041.643-1.703
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Triclinic
-
Birefringence
0.009-0.0120.020
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Creativity