1 Astrology
1.1 Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
USA, Southern and central Africa
1.2 Color
Blue, Violet, Colorless, Red, Green, Brown
Brown, Green, White, gray, Blue, Yellow
1.3 Streak
1.4 For which Rashi?
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
Not Available
1.5 Planet
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.64-3.664.00-4.65
1
7.18
2.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
2.6 Cleavage
None, but may exhibit slight parting
Perfect on [1011]
2.7 Mohs Hardness
2.11 Chemical Composition
MgAl2O4
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Pearly
3.2 Pleochroism
Absent
AbsentWalter Schumann
3.3 Dispersion
4.4 Transparency
Transparent, Translucent, Transparent to translucent
Translucent
4.5 Refractive Index
4.8 Optic Character
Not Available
Not Available
4.9 Crystal System
4.10 Birefringence
Not Available0.223-0.227
0
0.296
4.14 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
5 Benefits
5.1 Physical
5.1.1 Neurological
Not Available
Not Available
5.1.2 Cardiovascular
Not Available
Not Available
5.1.3 Respiratory
Not Available
Not Available
5.1.4 Reproductive
Not Available
Not Available
5.1.5 Digestive
Not Available
Not Available
5.2 Psychology
Not Available
Not Available
5.3 Healing
Not Available
Not Available
5.4 Qualities Associated
Not Available
Not Available