Origin
Canada, Russia
Brazil, Southern and central Africa
Color
Black, Green, gray
Blue, Green, Black
Streak
gray, Green
White
For which Rashi?
-
Gemini, Sagittarius
Planet
-
Jupiter
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
3.3-3.53.04-3.17
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
Perfect on [110]
{001} Indistinct, {???} Indistinct
Mohs Hardness
5-65.5
2
10
👆🏻
Chemical Composition
NaNa2(Fe++4Fe+++)Si8O22(OH)2
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Luster
Vitreous
-
Pleochroism
Strong: Blue-greens
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.652-1.6991.604-1.646
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
-99990.031-0.036
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Promotes psychic abilities and spiritual growth
Balances digestive system and reduces bloating
Cardiovascular
-
-
Respiratory
Excellent
Excellent
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
Insight
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Psychic Abilities