1 Astrology
1.1 Origin
Madagascar
China, South Africa
1.2 Color
Brownish, Black, Reddish, Brown, Blue
Yellow, Brown
1.3 Streak
Reddish, Brown
Not Available
1.4 For which Rashi?
Not Available
Leo, Capricorn, Leo, Capricorn, Leo, Capricorn
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Money, Protection
1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Gems, Sixth Edition (2006)
2.6 Cleavage
{0001} good, {10 1 0} parting
Indiscernible
2.7 Mohs Hardness
2.8 Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
SiO2
3 Optical Properties
3.1 Luster
3.2 Pleochroism
O = brownish gray; E = gray
Not Available
3.3 Dispersion
3.4 Transparency
Handbook of mineralogy (2001)
Opaque
3.5 Refractive Index
1.79-1.8071.534-1.540
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
Handbook of mineralogy (2001)
Gemstones of the world (2001) More from other references
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available