Origin
Southern and central Africa
Linares, Jaén, Andalusia, Spain
Color
Blue, Colorless, White
Blue
Streak
White
Blue
For which Rashi?
Gemini, Virgo
-
Planet
-
-
Element of Planets
Earth
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Quan Yin
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.45-2.585.35
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
None
Perfect on {100}, imperfect on {001}
Mohs Hardness
3-3.52.5
2
10
👆🏻
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Sub-Adamantine, Vitreous
Pleochroism
-
X = pale blue; Y = blue; Z = Prussian blue
Dispersion
0.010.05
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.583-1.6081.809-1.859
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.0190.050
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Aids in mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
Calming
Self-Expression
Healing
Emotional healing
Emotional healing
Qualities Associated
Calming
Communication