Origin
-
Southern and central Africa
Color
Blue, gray, Black
Black, Brownish, White, Brown
Streak
Blue
Reddish, Black
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
3-3.154.76-5.03
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Good on [110] and on [001]
None
Mohs Hardness
6.0-6.55.5-6.5
2
10
👆🏻
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Pearly
-
Pleochroism
Strong
-
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.606-1.637-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Insight
Healing
Emotional healing
-
Qualities Associated
Peace
Grounding