1 Astrology
1.1 Origin
Madagascar
Pakistan, Italy, Russia, China, Brazil, Switzerland, Madagascar, Austria, Canada
1.2 Color
Brownish, Black, Reddish, Brown, Blue
Reddish, Brown, Yellow, Green, Red, gray
1.3 Streak
Reddish, Brown
Reddish, White
1.4 For which Rashi?
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Sub-Conchoidal, Conchoidal, Brittle
2.6 Cleavage
{0001} good, {10 1 0} parting
Distinct on [110], parting on {221}
2.7 Mohs Hardness
2.8 Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
Not Available
3 Optical Properties
3.1 Luster
Vitreous
Subadamantine, Resinous
3.2 Pleochroism
O = brownish gray; E = gray
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
3.3 Dispersion
3.4 Transparency
Handbook of mineralogy (2001)
Not Available
3.5 Refractive Index
1.79-1.8071.885-1.990
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not Available0.105-0.135
0
0.296
3.9 Clarity
Handbook of mineralogy (2001)
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4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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