Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Southern and central Africa
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Blue, Colorless, White
Streak
White
White
For which Rashi?
-
Gemini, Virgo
Planet
-
-
Element of Planets
-
Earth
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
Quan Yin
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.26-3.362.45-2.58
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Good on {100}
None
Mohs Hardness
6.5-73-3.5
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 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Strong
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.656-1.7041.583-1.608
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Triclinic
monoclinic
Birefringence
0.009-0.0120.019
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
-
Physical
Neurological
Enhances mental clarity and focus
Aids in mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Calming
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Calming