Origin
USA, Southern and central Africa
Southern and central Africa
Color
Yellow, Brown, Reddish, Greenish, Green, gray
Brown, Green, gray, White
Streak
Yellow
gray, 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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.53.15-3.259
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
5-5.55.5-6
2
10
👆🏻
Chemical Composition
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael 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
Vitreous
Vitreous
Pleochroism
-
Weak to moderate
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Translucent
Transparent
Refractive Index
1.993-2.021.625-1.718
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Translucent
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
Confidence
Focus
Healing
Emotional healing
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Qualities Associated
Vitality
Protection