1 Astrology
1.1 Origin
Southern and central Africa
Brazil, Southern and central Africa, Sri Lanka
1.2 Color
Black, Reddish, gray, Red
Red, gray
1.3 Streak
Black, Brown, Reddish, Red
Red, Black
1.4 For which Rashi?
Aries, Aquarius, Aries, Aquarius, Aries, Aquarius
Not Available
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
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
Insoluble in acids
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
5.00-5.304.20-4.30
1
7.18
2.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
None, may show partings on {0001} and {10 1 1}
{110} good, 100 moderate, parting on {092} and {011}
2.7 Mohs Hardness
2.8 Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
O = brownish red; E = yellowish red
Weak to distinct brownish red-green-yellow
3.3 Dispersion
3.4 Transparency
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Transparent, Translucent
3.5 Refractive Index
2.690-3.2202.609-2.903
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
3.9 Clarity
OpaqueHerve Nicolas Lazzarelli
Transparent
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