1 Astrology
1.1 Origin
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
1.2 Color
Colorless, Yellow, pink, Red
1.3 Streak
White
1.4 For which Rashi?
Not Available
1.5 Planet
Not Available
1.6 Element of Planets
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
1.7.2 Ring Metal
Not Available
1.8 Energy
Not Available
1.9 Deities
Not Available
1.10 Not to wear with
Not Available
1.11 Powers
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
1.12.2 Talisman
Not Available
2 Physical Properties
2.1 Tenacity
Brittle
2.2 Solubility
Not Available
2.3 Durability
Not Available
2.4 Specific Gravity
2.90-2.98
Check 2.90-2.98 Range Gemstones!
1
7.18
2.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
2.6 Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
2.7 Mohs Hardness
7.5-8
Check 7.5-8 Range Gemstones!
2
10
2.8 Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous
3.2 Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
3.3 Dispersion
0.02
Rank: 24 (Overall) ▶
0.007
1
3.4 Transparency
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.650-1.695
Check 1.650-1.695 Range Gemstones!
1
3.25
3.6 Optic Character
Not Available
3.7 Crystal System
Trigonal
3.8 Birefringence
0.016
Check 0.016 Range Gemstones!
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
4.1.2 Cardiovascular
Not Available
4.1.3 Respiratory
Not Available
4.1.4 Reproductive
Not Available
4.1.5 Digestive
Not Available
4.2 Psychology
Not Available
4.3 Healing
Not Available
4.4 Qualities Associated
Not Available