Origin
Southern and central Africa
Southern and central Africa
Color
Black, Reddish, gray, Red
Colorless, White, Yellow, Blue, Green, gray
Streak
Black, Brown, Reddish, Red
White
For which Rashi?
Aries, Aquarius
-
Planet
Saturn
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Mars
-
Not to wear with
-
-
Powers
Healing
-
Birthstone
Planetary
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
5.00-5.302.95-2.96
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Conchoidal
Cleavage
None, may show partings on {0001} and {10 1 1}
None
Mohs Hardness
67-7.5
2
10
👆🏻
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous, Adamantine
Pleochroism
O = brownish red; E = yellowish red
None
Dispersion
0.05-
0.005
1
👆🏻
Transparency
OpaqueHerve Nicolas Lazzarelli
Transparent
Refractive Index
2.690-3.2201.658-1.673
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Orthorhombic
Birefringence
0.2800.010-0.011
0
0.296
👆🏻
Clarity
OpaqueHerve Nicolas Lazzarelli
Transparent
Physical
Neurological
-
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Grounding
-
Healing
Physical healing
Emotional healing
Qualities Associated
Grounding
Peace