Origin
Southern and central Africa
Russia
Color
Black, Reddish, gray, Red
Black, Violet, Blue, Green
Streak
Black, Brown, Reddish, Red
-
For which Rashi?
Aries, Aquarius
Gemini, Virgo
Planet
Saturn
Mercury
Element of Planets
-
Earth
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Mars
-
Not to wear with
-
-
Powers
Healing
-
Birthstone
Planetary
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.00-5.303.22-3.40
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Conchoidal
Cleavage
None, may show partings on {0001} and {10 1 1}
1,2 prismatic.
Mohs Hardness
65-6
2
10
👆🏻
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Luster
-
Vitreous
Pleochroism
O = brownish red; E = yellowish red
Common trichroism: light green
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
OpaqueHerve Nicolas Lazzarelli
-
Refractive Index
2.690-3.2201.668-1.703
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
monoclinic
Birefringence
0.2800.024-0.030
0
0.296
👆🏻
Clarity
OpaqueHerve Nicolas Lazzarelli
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Physical
Neurological
-
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Grounding
Renewal
Healing
Physical healing
Physical healing
Qualities Associated
Grounding
Love