1 Astrology
1.1 Origin
1.2 Color
Brownish, Black, Reddish, Brown, Blue
White, Colorless, White, pink, Yellow, Brown
1.3 Streak
1.4 For which Rashi?
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
Not Available
Not Available
1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
Spirituality, Healing
1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
2.6 Cleavage
{0001} good, {10 1 0} parting
Perfect on [10 1 1] three directions with angle of 74° 55
2.7 Mohs Hardness
2.8 Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
CaCO 3Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Pearly
3.2 Pleochroism
O = brownish gray; E = gray
NilArthur Thomas
3.3 Dispersion
3.4 Transparency
Handbook of mineralogy (2001)
Transparent, Translucent
3.5 Refractive Index
1.79-1.8071.486-1.658
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.154-0.174
0
0.296
3.9 Clarity
Handbook of mineralogy (2001)
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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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
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
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