1 Astrology
1.1 Origin
Southern and central Africa, Orange, blue, Orange, blue
Mexico
1.3 Color
White, Blue
Blue, Blue, Black
1.6 Streak
Not Available
Grey, Black, gray
1.9 For which Rashi?
1.12 Planet
1.15 Element of Planets
1.18 Energy
1.21 How to Wear?
1.21.1 Finger
Not Available
Not Available
1.23.2 Ring Metal
Not Available
Not Available
1.2 Deities
1.5 Not to wear with
Not Available
Not Available
1.9 Powers
Healing, Protection
Not Available
1.13 Birthstone
1.15.1 Planetary
Not Available
Not Available
1.0.1 Talisman
Not Available
Not Available
2 Physical Properties
3.1 Tenacity
3.6 Solubility
Not Available
Not Available
3.12 Durability
Not Available
Not Available
3.17 Specific Gravity
5.6 Fracture
Irregular, Irregular, Gemstones of the world (2001)
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
5.7 Cleavage
Not Available
Perfect on {0001}
5.8 Mohs Hardness
5.21 Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
6 Optical Properties
6.1 Luster
6.2 Pleochroism
AbsentWalter Schumann
Marked
6.4 Dispersion
10.6 Transparency
Translucent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
10.7 Refractive Index
1.486-1.6581.45-2.62
1
3.25
10.16 Optic Character
Not Available
Not Available
10.17 Crystal System
10.19 Birefringence
0.160-0.172Not Available
0
0.296
10.31 Clarity
Translucent
OpaqueAnthony et al
11 Benefits
11.1 Physical
11.1.1 Neurological
Not Available
Not Available
11.2.1 Cardiovascular
Not Available
Not Available
11.2.2 Respiratory
Not Available
Not Available
12.1.2 Reproductive
Not Available
Not Available
12.1.4 Digestive
Not Available
Not Available
12.2 Psychology
Not Available
Not Available
12.3 Healing
Not Available
Not Available
12.4 Qualities Associated
Not Available
Not Available