1 Astrology
1.1 Origin
Sri Lanka
1.2 Color
Red, Blue, Green, Brown, Black
1.3 Streak
White
1.4 For which Rashi?
Not Available
1.5 Planet
Not Available
1.6 Element of Planets
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
1.7.2 Ring Metal
Not Available
1.8 Energy
Not Available
1.9 Deities
Not Available
1.10 Not to wear with
Not Available
1.11 Powers
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
1.12.2 Talisman
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
2.2 Solubility
none
2.3 Durability
Not Available
2.4 Specific Gravity
2.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Indistinct
2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
3 Optical Properties
3.1 Luster
Vitreous
3.2 Pleochroism
Absent
3.3 Dispersion
Not Available
Rank: N/A (Overall) ▶
0.007
1
3.4 Transparency
Transparent, Translucent
3.5 Refractive Index
3.6 Optic Character
Not Available
3.7 Crystal System
Isometric
3.8 Birefringence
3.9 Clarity
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
4.1.2 Cardiovascular
Not Available
4.1.3 Respiratory
Not Available
4.1.4 Reproductive
Not Available
4.1.5 Digestive
Not Available
4.2 Psychology
Not Available
4.3 Healing
Not Available
4.4 Qualities Associated
Not Available