Origin
Brazil
Southern and central Africa
Color
Blue
Red, Brown, Black
Streak
-
Brownish, Red
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
-
-
Durability
-
-
Specific Gravity
2.60-2.905.85-6.15
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Indistinct
Fair in four directions forming octahedrons
Mohs Hardness
7.5-83.5-4
2
10
👆🏻
Chemical Composition
Be 3Al 2Si 6O 18Ulrich Henn and Claudio C.
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Adamantine
Pleochroism
Strong dichroism: blue to colourless\
visible
Dispersion
0.010.05
0.005
1
👆🏻
Transparency
Transparent
TranslucentWalter Schumann
Refractive Index
1.560-1.6042.849
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
cubic
Birefringence
0.003-0.010-9999
0
0.296
👆🏻
Clarity
Transparent
TranslucentWalter Schumann
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
-
Supports heart health
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Vitality