Origin
Italy, China
Australia
Color
Colorless, White, Blue, gray
Brown, Reddish, Brownish, Yellow
Streak
White
Brown, Brownish, Yellow
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
-
HCl soluble
Durability
-
-
Specific Gravity
3.094.27-4.29
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
Perfect on {100} and {010}, imperfect on {101}
Perfect {010}
Mohs Hardness
85-5.5
2
10
👆🏻
Chemical Composition
CaAl2Si2O7(OH)2.H2O
FeO(OH)Arthur Thomas , Gemstones (2009)
Luster
Vitreous, Greasy
Adamantine
Pleochroism
Weak
VisibleArthur Thomas
Dispersion
0.010.05
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.672-1.6762.26-2.398
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.019-0.0210.138
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
-
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Emotional Healing