Origin
-
Southern and central Africa
Color
Blue, Green
Colorless, Yellow
Streak
Blue
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
-
-
Durability
-
-
Specific Gravity
3.80-4.152.59-2.60
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
perfect along [010] and [100]
{001} Perfect, {110} Distinct, {101} Distinct
Mohs Hardness
3.5-46-7
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Silky
Vitreous
Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
none.
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Translucent
TransparentAnthony et al
Refractive Index
1.752-1.8151.583-1.614
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
0.063-9999
0
0.296
👆🏻
Clarity
Translucent
TransparentAnthony et al
Physical
Neurological
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-
Cardiovascular
-
Promotes mental clarity
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Creativity