1 Astrology
1.1 Origin
1.2 Color
Brownish, Black, Reddish, Brown, Blue
Green, Blue
1.3 Streak
1.4 For which Rashi?
Not Available
Cancer, Gemini, Cancer, Gemini, Cancer, Gemini
1.5 Planet
1.6 Element of Planets
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
Not Available
Protection, Love, Money
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
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
2.6 Cleavage
{0001} good, {10 1 0} parting
none
2.7 Mohs Hardness
2.8 Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
Not Available
3 Optical Properties
3.1 Luster
3.2 Pleochroism
O = brownish gray; E = gray
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Handbook of mineralogy (2001)
Translucent, Opaque
3.5 Refractive Index
1.79-1.8071.52-1.66
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.156
0
0.296
3.9 Clarity
Handbook of mineralogy (2001)
Translucent
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