Origin
Southern and central Africa
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Brown, Green, gray, White
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
Streak
gray, White
White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
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-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.15-3.2592.57-2.66
1
7.18
👆🏻
Fracture
-
Subconchoidal, Conchoidal
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Fair on {100}, poor on {001} and {010}
Mohs Hardness
5.5-67-7.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Mg2Al4Si5O18
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Weak to moderate
X = pale yellow
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.625-1.718-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Orthorhombic
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Supports healthy digestion
Cardiovascular
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-
Respiratory
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Good
Reproductive
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-
Digestive
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Psychology
Focus
Intuition
Healing
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Emotional healing
Qualities Associated
Protection
Psychic Abilities