Origin
Southern and central Africa
Southern and central Africa
Color
White, Violet, Blue, Yellow, Brown, Brownish, Colorless, Greenish
Brown, Green, gray, White
Streak
White
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
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.503.15-3.259
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
-
Cleavage
Distinct on {100} and {110}
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
5.5-65.5-6
2
10
👆🏻
Chemical Composition
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Pearly, Resinous
Vitreous
Pleochroism
-
Weak to moderate
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.540-1.5501.625-1.718
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.004-0.008-9999
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
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-
Respiratory
-
-
Reproductive
-
-
Digestive
-
-
Psychology
Optimism
Focus
Healing
Emotional healing
-
Qualities Associated
Spiritual Growth
Protection