1 Astrology
1.1 Origin
Southern and central Africa, Sixth Edition (2006)
Australia
1.2 Color
Blue, Green, Blue, Brown
Brown, Brown, Reddish, Brownish, Yellow, Brown, Reddish, Brownish, Yellow
1.3 Streak
White, Blue, Green
Brown, Brownish, Yellow
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
1.10 Not to wear with
Not Available
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1.11 Powers
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
2.2 Solubility
Not Available
HCl soluble
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.00-2.454.27-4.29
1
7.18
2.5 Fracture
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
Cu2H2Si2O5(OH)4
FeO(OH)Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Adamantine
3.2 Pleochroism
AbsentWalter Schumann
VisibleArthur Thomas
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.460-1.5702.26-2.398
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Gemmological Tables (2004) More from other references
Gemstones (2009)
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
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