Origin
Canada, Russia
-
Color
Black, Green, gray
Blue, Green
Streak
gray, Green
Blue
For which Rashi?
-
Sagittarius, Capricorn
Planet
-
Venus
Element of Planets
-
Water
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
Psychic Power
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.3-3.53.70-3.90
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
Perfect on [110]
Perfect on {011}, fair on {100}, poor on {110}
Mohs Hardness
5-63.5-4
2
10
👆🏻
Chemical Composition
NaNa2(Fe++4Fe+++)Si8O22(OH)2
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Strong: Blue-greens
Visible shades of blue
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.652-1.6991.720-1.850
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
-99990.108
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Promotes psychic abilities and spiritual growth
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Reproductive
-
Supports reproductive health
Digestive
-
-
Psychology
Insight
Insight
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Insight