Origin
Mexico
Southern and central Africa
Color
Blue, Black
Brown, Green, gray, White
Streak
Grey, Black, gray
gray, 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
Flexible
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.6-4.763.15-3.259
1
7.18
👆🏻
Fracture
-
-
Cleavage
Perfect on {0001}
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
-99995.5-6
2
10
👆🏻
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Resinous
Vitreous
Pleochroism
Marked
Weak to moderate
Dispersion
0.080.02
0.005
1
👆🏻
Transparency
OpaqueAnthony et al
Transparent
Refractive Index
1.45-2.621.625-1.718
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
OpaqueAnthony et al
Transparent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Transformation
Focus
Healing
Emotional healing
-
Qualities Associated
Manifestation
Protection