Origin
India
Southern and central Africa
Color
Colorless, White, gray, Brownish, Greenish
Brown, White, Greenish, gray, Green, Brownish
Streak
White
gray
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
2.78-2.882.9-3.5
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
Perfect on the {001}
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
2-35.5-6
2
10
👆🏻
Chemical Composition
KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Silky, Pearly
Vitreous, Pearly
Pleochroism
Weak
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.552-1.6181.603-1.690
1
3.25
👆🏻
Optic Character
-
Biaxial/+
Crystal System
monoclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
Enhances brain function
Cardiovascular
-
Supports heart health
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Reflection
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Awareness
Self-discovery