Origin
-
Southern and central Africa
Color
Colorless, White, Brownish, Reddish, Black, gray, Brown
Colorless, Blue, Brown, Green, gray
Streak
White
White
For which Rashi?
-
Gemini
Planet
-
Venus, Neptune
Element of Planets
-
Water, Air
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
Healing
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
Soluble
-
Durability
-
-
Specific Gravity
2.973.90-4.00
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
None observed
Perfect on {001}, good on {210}, poor on {010}
Mohs Hardness
2.53-3.5
2
10
👆🏻
Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy, Pearly
Vitreous, Pearly
Pleochroism
colorless.
Weakly trichroiC
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.338-1.3391.619-1.635
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
0.0010.004-0.012
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
-
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Divine Guidance