1 Astrology
1.1 Origin
Madagascar
Southern and central Africa, Switzerland, Yellow, blue, Switzerland, Yellow, blue
1.2 Color
Brownish, Black, Reddish, Brown, Blue
Red, Brown, Green, Yellow, Blue, Blue, Green, Yellow, Colorless, Pale pink, Red, White, Brown, Black, White, Yellow, Green, Red, Blue, pink
1.3 Streak
1.4 For which Rashi?
Not Available
Scorpio, Aquarius, Pisces, Scorpio, Aquarius, Pisces, Scorpio, Aquarius, Pisces
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
1.9 Deities
Not Available
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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
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
slightly water soluble and in hot hydrochloric acid
2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
2.6 Cleavage
{0001} good, {10 1 0} parting
Octahedral, perfect on {111}, parting on {011}
2.7 Mohs Hardness
2.8 Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
CaF2
3 Optical Properties
3.1 Luster
3.2 Pleochroism
O = brownish gray; E = gray
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Handbook of mineralogy (2001)
Transparent, Translucent, Transparent to translucent
3.5 Refractive Index
1.79-1.8071.432-1.436
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)
Transparent
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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