Origin
India
Madagascar
Color
Colorless, White, gray, Brownish, Greenish
Brownish, Black, Reddish, Brown, Blue
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
Elastic
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.78-2.883.84
1
7.18
👆🏻
Fracture
-
Subconchoidal, Conchoidal
Cleavage
Perfect on the {001}
{0001} good, {10 1 0} parting
Mohs Hardness
2-37.5-8
2
10
👆🏻
Chemical Composition
KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
(Ca,Ce)(Al,Ti,Mg)12O19
Luster
Vitreous, Silky, Pearly
Vitreous
Pleochroism
Weak
O = brownish gray; E = gray
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.552-1.6181.79-1.807
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Hexagonal
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Reflection
Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
Awareness
Balance