1 Astrology
1.1 Origin
Canada, Pakistan
Not Available, Southern and central Africa
1.2 Color
Reddish, Greenish, White, Red, Yellow, Green, Grey, Blue, Brown, Colorless, White, gray, Reddish, orange
Violet, Black
1.3 Streak
White
gray, White, gray, White
1.4 For which Rashi?
Virgo, Capricorn, Virgo, Capricorn, Virgo, Capricorn
Not Available
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
Projective, Receptive
Not Available
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
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
2.2 Solubility
Dilute acid
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Handbook of mineralogy (2001)
2.6 Cleavage
Distinct on {010}, imperfect {110} and {011}
None
2.7 Mohs Hardness
2.8 Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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
Vitreous, Resinous
Vitreous
3.2 Pleochroism
StrongArthur Thomas
Strong: pale lavender dark blueAnthony et al
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
TranslucentAnthony et al, Translucent
3.5 Refractive Index
1.525-1.686Not Available
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Orthorhombic
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
3.8 Birefringence
0.155Not 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