Astrology
Origin
Not Available
Italy
Color
Colorless, White, Brownish, Reddish, Black, Brownish, Black, Colorless, gray, White, Reddish, Brown
Red, Reddish, Brown, Black, Yellow
Streak
White
Red
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Energy
Not Available
Not Available
How to Wear?
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Birthstone
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Physical Properties
Tenacity
Brittle
Brittle
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.97
Not Available
Fracture
Uneven
Uneven, Splintery
Cleavage
None observed
[001] good, [100] distinct
Mohs Hardness
2.5
6-6.5
Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.
Not Available
Optical Properties
Luster
Vitreous, Greasy, Pearly
Vitreous
Pleochroism
colorless.
visible
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Not Available
Refractive Index
1.338-1.339
1.725-1.756
Optic Character
Not Available
Not Available
Crystal System
monoclinic
monoclinic
Birefringence
0.001
0.025-0.076
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available
Benefits
Physical
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
