Origin
Southern and central Africa
Sri Lanka, India, Brazil
Color
Brown, Black, Blue
Green, Brown, Colorless, gray, Yellow
Streak
-
Brownish, White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.653.55-3.73
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
Conchoidal, Uneven
Cleavage
None
none
Mohs Hardness
-99997-7.5
2
10
👆🏻
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
-
Greasy, Vitreous
Pleochroism
Definite: brown reddish-brownWalter Schumann
None
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.544-1.5531.730-1.760
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
cubic
Birefringence
0.0090.020
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Improves digestion and metabolism
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
Helps in digestion and alleviates indigestion
Digestive
-
-
Psychology
Protection
Abundance
Healing
Emotional healing
Physical healing
Qualities Associated
Protection
Abundance