Origin
Southern and central Africa
Southern and central Africa
Color
Green, Grey, White
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
2.60-3.025.00-5.30
1
7.18
👆🏻
Fracture
Uneven
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
{001} Perfect
None, may show partings on {0001} and {10 1 1}
Mohs Hardness
2-2.56
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 5Al(Si 3Al)O 10(OH) 8Anthony et al , Handbook of mineralogy (2001)
Fe 2O 3Arthur Thomas , Gemstones (2009)
Luster
Pearly, Greasy
-
Pleochroism
Distinct: light yellow-green to light bluE
O = brownish red; E = yellowish red
Dispersion
0.020.05
0.005
1
👆🏻
Transparency
Transparent
OpaqueHerve Nicolas Lazzarelli
Refractive Index
1.571-1.5972.690-3.220
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Trigonal
Birefringence
-99990.280
0
0.296
👆🏻
Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli
Physical
Neurological
-
-
Cardiovascular
-
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Grounding
Healing
Physical healing
Physical healing
Qualities Associated
Emotional Healing
Grounding