Origin
-
Southern and central Africa
Color
Colorless, gray, White
Violet, Black
Streak
White
gray, 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
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.33-2.373.17
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
-
Cleavage
Perfect on {010}, good on {100}
None
Mohs Hardness
7.57
2
10
👆🏻
Chemical Composition
Be 2BO 3(OH)Ulrich Henn and Claudio C.
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
-
Strong: pale lavender dark blueAnthony et al
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
TranslucentAnthony et al, Translucent
Refractive Index
1.543-1.631-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Birefringence
0.071-0.074-9999
0
0.296
👆🏻
Clarity
Transparent
TranslucentAnthony et al
Physical
Neurological
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-
Cardiovascular
Supports heart health
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Respiratory
Excellent
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Reproductive
-
-
Digestive
-
-
Psychology
Clarity
Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
Clarity
Emotional Healing