Origin
Canada, Russia
Southern and central Africa
Color
Black, Green, gray
Colorless, gray, White
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
3.3-3.52.40-2.42
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
Perfect on [110]
{010} Perfect, {001} Distinct
Mohs Hardness
5-64.5
2
10
👆🏻
Chemical Composition
NaNa2(Fe++4Fe+++)Si8O22(OH)2
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Strong: Blue-greens
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.652-1.6991.584-1.615
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
-99990.028-0.030
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Promotes psychic abilities and spiritual growth
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Cardiovascular
-
-
Respiratory
Excellent
Good
Reproductive
-
-
Digestive
-
-
Psychology
Insight
Imagination
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Harmony