1 Astrology
1.1 Origin
Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
India, China
1.2 Color
Violet, Blue
Blue, Yellow, Brown, gray, Reddish, Greenish
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
polyatomic nonmetal
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
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.56-2.66Not Available
1
7.18
2.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
(e.g. graphite).
2.6 Cleavage
Not Available
{???} Imperfect, {???} Imperfect
2.7 Mohs Hardness
2.8 Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Not Available
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Strong trichroism: colorless to yellowish
Not Available
3.3 Dispersion
3.4 Transparency
Transparent
Not Available
3.5 Refractive Index
1.542-1.578Not Available
1
3.25
3.6 Optic Character
3.7 Crystal System
Not Available
Orthorhombic
3.8 Birefringence
0.008-0.012Not Available
0
0.296
3.9 Clarity
Transparent
Not Available
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available