1 Astrology
1.1 Origin
Southern and central Africa
Sri Lanka
1.2 Color
Green, Brown, Red
Red, Blue, Green, Brown, Black
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
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
Not Available
Not Available
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
2.1.1 Talisman
Not Available
Not Available
3 Physical Properties
3.1 Tenacity
Not Available
Not Available
3.2 Solubility
3.3 Durability
Not Available
Not Available
3.4 Specific Gravity
Not Available3.63-3.9
1
7.18
5.10 Fracture
Not Available
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
5.11 Cleavage
5.12 Mohs Hardness
6.2 Chemical Composition
Not Available
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
7 Optical Properties
7.1 Luster
7.3 Pleochroism
7.6 Dispersion
8.10 Transparency
Not Available
Transparent, Translucent
8.11 Refractive Index
Not Available1.770-1.780
1
3.25
10.8 Optic Character
Not Available
Not Available
10.9 Crystal System
10.10 Birefringence
Not AvailableNot Available
0
0.296
10.11 Clarity
Not Available
Transparent
11 Benefits
11.1 Physical
11.1.1 Neurological
Not Available
Not Available
11.1.2 Cardiovascular
Not Available
Not Available
11.1.3 Respiratory
Not Available
Not Available
11.1.4 Reproductive
Not Available
Not Available
11.1.5 Digestive
Not Available
Not Available
11.2 Psychology
Not Available
Not Available
11.3 Healing
Not Available
Not Available
11.4 Qualities Associated
Not Available
Not Available