Origin
Southern and central Africa
Southern and central Africa
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Brown, Green, gray, White
Streak
Colorless
gray, White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
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How to Wear?
Finger
-
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Ring Metal
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Deities
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Not to wear with
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Powers
-
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Birthstone
Planetary
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Talisman
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-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.03-3.183.15-3.259
1
7.18
👆🏻
Fracture
Uneven, Irregular, Conchoidal
-
Cleavage
{???} Indistinct
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
7-7.55.5-6
2
10
👆🏻
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
Very strong: pale yellow colorless
Weak to moderate
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.614-1.6661.625-1.718
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.014-0.032-9999
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
Self-acceptance
Focus
Healing
Emotional healing
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Qualities Associated
Self-Exploration
Protection