Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Southern and central Africa
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Black, Reddish, gray, Red
Streak
White
Black, Brown, Reddish, Red
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
Solubility
-
-
Durability
-
-
Specific Gravity
3.26-3.365.00-5.30
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Good on {100}
None, may show partings on {0001} and {10 1 1}
Mohs Hardness
6.5-76
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Fe 2O 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
-
Pleochroism
Strong
O = brownish red; E = yellowish red
Dispersion
0.020.05
0.005
1
👆🏻
Transparency
-
OpaqueHerve Nicolas Lazzarelli
Refractive Index
1.656-1.7042.690-3.220
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Triclinic
Trigonal
Birefringence
0.009-0.0120.280
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueHerve Nicolas Lazzarelli
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Grounding
Healing
Emotional healing
Physical healing
Qualities Associated
Balance
Grounding