Origin
Southern and central Africa
Colombia, Zambia, Brazil, Madagascar, Southern and central Africa, Zimbabwe, Russia, India, Pakistan, Australia, USA, Mexico, Spain
Color
Black, Reddish, gray, Red
Green, Blue, Yellow, Grey
Streak
Black, Brown, Reddish, Red
White
For which Rashi?
Aries, Aquarius
Taurus, Gemini, Aries
Planet
Saturn
Venus, Mercury
Element of Planets
-
Earth
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
Gold
Deities
Mars
Diana, Artemis, Venus, Freyja
Not to wear with
-
Red Coral, Natural Pearl, Moonstone, Ruby
Powers
Healing
Protection, Love, Courage
Birthstone
Planetary
Taurus
Talisman
-
Gemini
Tenacity
Brittle
-
Solubility
-
-
Durability
-
Hard
Specific Gravity
5.00-5.302.67-2.78
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Uneven, ConchoidalWalter Schumann
Cleavage
None, may show partings on {0001} and {10 1 1}
Imperfect on the [0001]
Mohs Hardness
67.5-8
2
10
👆🏻
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
Be3Al2SiO6
Luster
-
Vitreous
Pleochroism
O = brownish red; E = yellowish red
Strong dichroism: yellow green Lazzarelli
Dispersion
0.050.01
0.005
1
👆🏻
Transparency
OpaqueHerve Nicolas Lazzarelli
Transparent, Translucent, Transparent to translucent
Refractive Index
2.690-3.2201.565-1.602
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Hexagonal
Birefringence
0.2800.0040-0.0070
0
0.296
👆🏻
Clarity
OpaqueHerve Nicolas Lazzarelli
-