Origin
Czech
Southern and central Africa
Color
Brownish, Black, Colorless, White, gray, Blue, Green
Black, Brownish, Brown
Streak
White
Brown
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
insoluble
-
Durability
-
-
Specific Gravity
6.46-6.574.5-4.8
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Uneven
Cleavage
Good [110] and [021]
None, parting may develop along {111}
Mohs Hardness
3-3.55.5
2
10
👆🏻
Chemical Composition
PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe++Cr2O4
Luster
Adamantine, Vitreous, Resinous
-
Pleochroism
-
none.
Dispersion
0.060.04
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.803-2.0782.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric
Birefringence
0.273-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Clarity
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Clarity
Protection