Origin
-
Southern and central Africa
Color
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Colorless, Yellow
Streak
Blue, White
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
Brittle
-
Solubility
Gelatinises in acids
-
Durability
-
-
Specific Gravity
2.4-2.52.59-2.60
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
-
Cleavage
Distinct on {110}
{001} Perfect, {110} Distinct, {101} Distinct
Mohs Hardness
5-66-7
2
10
👆🏻
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Greasy
Vitreous
Pleochroism
None
none.
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
TransparentAnthony et al
Refractive Index
1.501.583-1.614
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
TransparentAnthony et al
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
Promotes mental clarity
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Creativity