1 Astrology
1.2 Origin
USA, Southern and central Africa, green, blue, China, India, USA, Italy, green, blue, China, India, USA, Italy
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
1.6 Color
White, Yellow
Blue, Violet, Colorless, Red, Green, Brown
1.9 Streak
1.12 For which Rashi?
Gemini
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
1.15 Planet
1.18 Element of Planets
Not Available
Not Available
1.21 Energy
1.23 How to Wear?
1.23.2 Finger
Not Available
Not Available
1.24.1 Ring Metal
Not Available
Not Available
1.26 Deities
1.29 Not to wear with
Not Available
Not Available
1.32 Powers
1.34 Birthstone
1.34.1 Planetary
Not Available
Not Available
1.35.3 Talisman
Not Available
Not Available
3 Physical Properties
3.2 Tenacity
Not Available
Not Available
4.3 Solubility
4.6 Durability
Not Available
Not Available
4.8 Specific Gravity
2.44-2.623.64-3.66
1
7.18
4.11 Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
4.15 Cleavage
Not Available
None, but may exhibit slight parting
4.16 Mohs Hardness
4.20 Chemical Composition
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
MgAl2O4
6 Optical Properties
6.2 Luster
Vitreous, Greasy, Silky
Vitreous
7.2 Pleochroism
AbsentWalter Schumann
Absent
7.5 Dispersion
7.9 Transparency
Translucent
Transparent, Translucent, Transparent to translucent
7.11 Refractive Index
7.14 Optic Character
Not Available
Not Available
7.17 Crystal System
7.19 Birefringence
0.008-0.014Not Available
0
0.296
8.3 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda
10 Benefits
10.2 Physical
10.2.1 Neurological
Not Available
Not Available
10.3.2 Cardiovascular
Not Available
Not Available
10.4.2 Respiratory
Not Available
Not Available
10.4.4 Reproductive
Not Available
Not Available
10.4.6 Digestive
Not Available
Not Available
10.6 Psychology
Not Available
Not Available
10.8 Healing
Not Available
Not Available
10.10 Qualities Associated
Not Available
Not Available