Origin
Southern and central Africa
Sri Lanka
Color
Colorless, gray, White
Blue
Streak
White
-
For which Rashi?
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Sagittarius, Scorpio
Planet
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Pluto
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
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Hephaestus
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.40-2.423.65-4.55
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
{010} Perfect, {001} Distinct
None, but may exhibit slight parting
Mohs Hardness
4.57.5-8
2
10
👆🏻
Chemical Composition
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Luster
Vitreous
Vitreous
Pleochroism
-
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.584-1.6151.735-1.790
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Isometric
Birefringence
0.028-0.030-9999
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
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Reproductive
-
-
Digestive
-
-
Psychology
Imagination
Empowerment
Healing
Emotional healing
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Qualities Associated
Harmony
Transformation