1 Astrology
1.1 Origin
Brazil
Not Available, Southern and central Africa
1.4 Color
Blue, Green, Colorless, White
Not Available
1.1 Streak
1.1 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.8 Element of Planets
Not Available
Not Available
1.12 Energy
Not Available
Not Available
1.16 How to Wear?
1.16.1 Finger
Not Available
Not Available
1.19.1 Ring Metal
Not Available
Not Available
1.1 Deities
Not Available
Not Available
1.6 Not to wear with
Not Available
Not Available
1.10 Powers
Not Available
Not Available
1.14 Birthstone
1.15.1 Planetary
Not Available
Not Available
1.20.1 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
3.4 Solubility
Not Available
Not Available
4.2 Durability
Not Available
Not Available
5.2 Specific Gravity
6.11 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Conchoidal, Gemstones of the world (2001)
6.13 Cleavage
{001} Perfect
Not Available
6.14 Mohs Hardness
8.4 Chemical Composition
NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
9 Optical Properties
9.1 Luster
9.2 Pleochroism
Not Available
AbsentWalter Schumann
10.3 Dispersion
11.8 Transparency
11.9 Refractive Index
1.590-1.5991.37-1.52
1
3.25
11.20 Optic Character
Not Available
Not Available
11.21 Crystal System
Not Available
Not Available
11.22 Birefringence
0.009Not Available
0
0.296
13.8 Clarity
14 Benefits
14.1 Physical
14.1.1 Neurological
Not Available
Not Available
14.1.2 Cardiovascular
Not Available
Not Available
14.1.3 Respiratory
Not Available
Not Available
14.1.4 Reproductive
Not Available
Not Available
14.1.5 Digestive
Not Available
Not Available
14.2 Psychology
Not Available
Not Available
14.3 Healing
Not Available
Not Available
14.4 Qualities Associated
Not Available
Not Available