1 Astrology
1.1 Origin
1.2 Color
Yellow, Reddish, Brown, Brownish, Green, gray, Colorless
Blue, Green, Colorless, White
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
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
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
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
3.6 Cleavage
Good on {100} and {110}
{001} Perfect
3.7 Mohs Hardness
3.8 Chemical Composition
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
4 Optical Properties
4.1 Luster
Vitreous, Pearly
Vitreous
4.2 Pleochroism
Weak; O = colorless to yellow; E = colorless to honey-yellow
Not Available
4.3 Dispersion
4.4 Transparency
Transparent, Translucent
Transparent
4.5 Refractive Index
1.610-1.6471.590-1.599
1
3.25
4.6 Optic Character
Not Available
Not Available
4.7 Crystal System
4.8 Birefringence
4.9 Clarity
5 Benefits
5.1 Physical
5.1.1 Neurological
Not Available
Not Available
5.1.2 Cardiovascular
Not Available
Not Available
5.1.3 Respiratory
Not Available
Not Available
5.1.4 Reproductive
Not Available
Not Available
5.1.5 Digestive
Not Available
Not Available
5.2 Psychology
Not Available
Not Available
5.3 Healing
Not Available
Not Available
5.4 Qualities Associated
Not Available
Not Available