Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Southern and central Africa
Color
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
Yellow, White
Streak
White
gray, Brownish, Black
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
2.57-2.664.80-4.90
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven
Cleavage
Fair on {100}, poor on {001} and {010}
{010} Indistinct
Mohs Hardness
7-7.56-6.5
2
10
👆🏻
Chemical Composition
Mg2Al4Si5O18
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Greasy, Vitreous
-
Pleochroism
X = pale yellow
-
Dispersion
0.010.05
0.005
1
👆🏻
Transparency
-
-
Refractive Index
-9999-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
Supports healthy digestion
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Cardiovascular
-
-
Respiratory
Good
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Reproductive
-
-
Digestive
-
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Psychology
Intuition
Protection
Healing
Emotional healing
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Qualities Associated
Psychic Abilities
Protection