1 Astrology
1.1 Origin
India
Not Available, Southern and central Africa
1.2 Color
White, Red, Green, Blue, Brown, Yellow, Brown, Black, pink, Blue, Green, Yellow, Brown, Yellow, Brown, orange
Violet, Black
1.3 Streak
White
gray, White, gray, White
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
Earth, Air, Water
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
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Healing, Protection, Love
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
2.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Handbook of mineralogy (2001)
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
[C,H,O]
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
AbsentWalter Schumann
Strong: pale lavender dark blueAnthony et al
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
TranslucentAnthony et al, Translucent
3.5 Refractive Index
1.539-1.545Not Available
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Amorphous
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
Transparent
TranslucentAnthony et al
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