Origin
Southern and central Africa
Australia, Spain, Brazil, Germany
Color
Brown, Green, gray, White
Green, Blue, Colorless
Streak
gray, White
White
For which Rashi?
-
Virgo
Planet
-
-
Element of Planets
-
Earth
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.15-3.2592.42-2.58
1
7.18
👆🏻
Fracture
-
Conchoidal, Splintery, ConchoidalWalter Schumann
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
[010] perfect
Mohs Hardness
5.5-64-5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
AlPO4 · 2(H2O)
Luster
Vitreous
Vitreous, Waxy
Pleochroism
Weak to moderate
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
Translucent, Opaque . May be translucent when backlit on the edges.
Refractive Index
1.625-1.7181.560-1.594
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Orthorhombic
Birefringence
-99990.031
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
-
-
Cardiovascular
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Supports heart health
Respiratory
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Good
Reproductive
-
-
Digestive
-
-
Psychology
Focus
Harmony
Healing
-
Emotional healing
Qualities Associated
Protection
Harmony