1 Astrology
1.1 Origin
Southern and central Africa
Southern and central Africa, Sixth Edition (2006)
1.4 Color
Red, Brown, Red, Red, Black
Blue, Green, Blue, Brown
1.6 Streak
Brownish, Red, Brownish, Red
White, Blue, Green
1.7 For which Rashi?
1.8 Planet
1.9 Element of Planets
1.10 How to Wear?
1.10.1 Finger
Not Available
Not Available
1.10.2 Ring Metal
Not Available
Not Available
1.11 Energy
1.12 Deities
1.13 Not to wear with
Not Available
Not Available
1.14 Powers
1.15 Birthstone
1.15.1 Planetary
Not Available
Not Available
1.15.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
5.85-6.152.00-2.45
1
7.18
2.5 Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
2.6 Cleavage
Fair in four directions forming octahedrons
none
2.7 Mohs Hardness
2.8 Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cu2H2Si2O5(OH)4
3 Optical Properties
3.1 Luster
Adamantine
Vitreous, Greasy
3.2 Pleochroism
visible
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
TranslucentWalter Schumann
Opaque
3.5 Refractive Index
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.023-0.050
0
0.296
3.9 Clarity
TranslucentWalter Schumann
Gemmological Tables (2004) More from other references
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available