1 Astrology
1.1 Origin
Not Available, Southern and central Africa
Southern and central Africa
1.2 Color
Brown
Black, Reddish, gray, Red
1.3 Streak
Not Available
Black, Brown, Reddish, Red
1.4 For which Rashi?
Aries, Capricorn, Aries, Capricorn, Aries, Capricorn
Aries, Aquarius, Aries, Aquarius, Aries, Aquarius
1.5 Planet
1.6 Element of Planets
Not Available
Not Available
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
Black Madonna, Isis, Horus
Mars
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 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
Not Available5.00-5.30
1
7.18
2.5 Fracture
Conchoidal
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
2.6 Cleavage
Not Available
None, may show partings on {0001} and {10 1 1}
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
Fe 2O 3Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
Not Available
Not Available
3.2 Pleochroism
Not Available
O = brownish red; E = yellowish red
3.3 Dispersion
3.4 Transparency
Not Available
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
3.5 Refractive Index
Not Available2.690-3.220
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.280
0
0.296
3.9 Clarity
Not Available
OpaqueHerve Nicolas Lazzarelli
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