Origin
-
Southern and central Africa
Color
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Blue, Colorless, White
Streak
Blue, 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
Brittle
-
Solubility
Gelatinises in acids
-
Durability
-
-
Specific Gravity
2.4-2.52.45-2.58
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
Distinct on {110}
None
Mohs Hardness
5-63-3.5
2
10
👆🏻
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous
Pleochroism
None
-
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.501.583-1.608
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
monoclinic
Birefringence
-99990.019
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
Enhances mental clarity and focus
Aids in mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Calming
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Calming