Origin
Southern and central Africa
Canada, Southern and central Africa, Italy, Australia, India
Color
Brown, Green, gray, White
Violet, Brownish, Yellow, Reddish, Pale pink
Streak
gray, White
White
For which Rashi?
-
Virgo
Planet
-
Mercury, Jupiter
Element of Planets
-
Water
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.15-3.2592.69-2.79
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Poor on {0001}
Mohs Hardness
5.5-65.5-6.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Weak to moderate
Weak
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
Translucent
Refractive Index
1.625-1.7181.607-1.612
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Hexagonal
Birefringence
-99990.003
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
-
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Focus
Spirituality
Healing
-
Emotional healing
Qualities Associated
Protection
Spiritual Protection