Origin
Southern and central Africa
Sri Lanka
Color
Black, Reddish, gray, Red
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Streak
Black, Brown, Reddish, Red
White, Brownish
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
-
insoluble
Durability
-
-
Specific Gravity
5.00-5.306.86-7.03
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
None, may show partings on {0001} and {10 1 1}
{100} imperfect, {110} indistinct; partings on {111} or {011}
Mohs Hardness
66-7
2
10
👆🏻
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Adamantine, Greasy
Pleochroism
O = brownish red; E = yellowish red
Pleochroic haloes have been observed. Dichroic in yellow
Dispersion
0.050.07
0.005
1
👆🏻
Transparency
OpaqueHerve Nicolas Lazzarelli
Transparent, Translucent
Refractive Index
2.690-3.2201.990-2.105
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
tetragonal
Birefringence
0.2800.096-0.098
0
0.296
👆🏻
Clarity
OpaqueHerve Nicolas Lazzarelli
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Grounding
Focus
Healing
Physical healing
Emotional healing
Qualities Associated
Grounding
Manifestation