Origin
Linares, Jaén, Andalusia, Spain
Southern and central Africa
Color
Blue
Brown, White, Greenish, gray, Green, Brownish
Streak
Blue
gray
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
5.352.9-3.5
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Perfect on {100}, imperfect on {001}
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
2.55.5-6
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Sub-Adamantine, Vitreous
Vitreous, Pearly
Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
-
Dispersion
0.050.01
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.809-1.8591.603-1.690
1
3.25
👆🏻
Optic Character
-
Biaxial/+
Crystal System
monoclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.050-9999
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
Enhances brain function
Cardiovascular
-
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Self-Expression
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Self-discovery