Origin
Tanzania, Sri Lanka, China
Linares, Jaén, Andalusia, Spain
Color
Colorless
Blue
Streak
White
Blue
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
-
-
Durability
-
-
Specific Gravity
3.60-3.615.35
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Imperfect/fair/absent
Perfect on {100}, imperfect on {001}
Mohs Hardness
8-8.52.5
2
10
👆🏻
Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Sub-Adamantine, Vitreous
Pleochroism
Weak
X = pale blue; Y = blue; Z = Prussian blue
Dispersion
0.020.05
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.70-1.731.809-1.859
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
monoclinic
Birefringence
0.0550.050
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
Transformation
Self-Expression
Healing
Physical healing
Emotional healing
Qualities Associated
Spiritual Growth
Communication