1 Astrology
1.1 Origin
Canada, Columbia, Brazil, Burma, Russia, blue
the type locality
1.2 Color
Blue, White, pink, gray, Green
Blue, Green
1.3 Streak
1.4 For which Rashi?
Sagittarius
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
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
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.15-2.403.80-4.15
1
7.18
2.5 Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Uneven, UnevenArthur Thomas, Gemstones (2009)
2.6 Cleavage
Poor on {110}
perfect along [010] and [100]
2.7 Mohs Hardness
2.8 Chemical Composition
Na8Al6Si6O24Cl2
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
AbsentWalter Schumann
X = very pale blue; Y = pale blue; Z = deep blue
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Opaque
Translucent
3.5 Refractive Index
1.478-1.4881.752-1.815
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.063
0
0.296
3.9 Clarity
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