Origin
Southern and central Africa
Czech
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Brownish, Black, Colorless, White, gray, Blue, Green
Streak
Colorless
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
-
-
Solubility
-
insoluble
Durability
-
-
Specific Gravity
3.03-3.186.46-6.57
1
7.18
👆🏻
Fracture
Uneven, Irregular, Conchoidal
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
{???} Indistinct
Good [110] and [021]
Mohs Hardness
7-7.53-3.5
2
10
👆🏻
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Adamantine, Vitreous, Resinous
Pleochroism
Very strong: pale yellow colorless
-
Dispersion
0.020.06
0.005
1
👆🏻
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.614-1.6661.803-2.078
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Orthorhombic
Birefringence
0.014-0.0320.273
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Self-acceptance
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-Exploration
Clarity