Origin
Southern and central Africa
Australia
Color
Blue, Colorless, White
Red
Streak
White
White, Colorless
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
2.45-2.583.1
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
None
Perfect {010} imperfect {100}
Mohs Hardness
3-3.56-7
2
10
👆🏻
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca2Al3(SiO4)3(OH)
Luster
Vitreous
Vitreous
Pleochroism
-
Present
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.583-1.6081.695
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
0.0190.006-0.018
0
0.296
👆🏻
Clarity
-
OpaqueHerve Nicolas Lazzarelli
Physical
Neurological
Aids in mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Calming
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Calming
Love