Origin
Canada, Russia
Sri Lanka, Burma, USA, Russia
Color
Black, Green, gray
Yellow, Brown, pink, Colorless
Streak
gray, Green
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.3-3.53.46-3.50
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
Perfect on [110]
Perfect
Mohs Hardness
5-66-7
2
10
👆🏻
Chemical Composition
NaNa2(Fe++4Fe+++)Si8O22(OH)2
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
-
Pleochroism
Strong: Blue-greens
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.652-1.6991.665-1.712
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
-99990.036-0.042
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Promotes psychic abilities and spiritual growth
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Cardiovascular
-
-
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
-
-
Psychology
Insight
Intuition
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Emotional Healing