Origin
Italy, China
USA
Color
Colorless, White, Blue, gray
Brown, Red, Black, Brownish
Streak
White
Reddish, Brown
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.095.05-5.22
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
Perfect on {100} and {010}, imperfect on {101}
None
Mohs Hardness
85.5-6
2
10
👆🏻
Chemical Composition
CaAl2Si2O7(OH)2.H2O
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Greasy
-
Pleochroism
Weak
-
Dispersion
0.010.19
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.672-1.676-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Birefringence
0.019-0.021-9999
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
-
Creativity
Healing
Emotional healing
-
Qualities Associated
-
Grounding