Origin
Brazil, Madagascar, Zimbabwe, Russia, Sri Lanka, India, Burma, Origins: Brazil
USA, Mexico, Brazil, Switzerland, Sri Lanka, Burma, Madagascar, Origins: USA, Germany, Japan
Color
Greenish, Green, Brownish, Red, Blue, Brown, gray
Yellow, Brown, Colorless, White, gray, Brownish
Streak
White
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
Earth, Water
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
Healing
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.69-3.812.97-3.03
1
7.18
👆🏻
Fracture
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
{001} Poor
Mohs Hardness
8.57
2
10
👆🏻
Chemical Composition
BeAl 2 O 4
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Greasy
Pleochroism
X = red; Y = yellow-orange; Z = emerald-green
Weak: pale yellow yellow
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
-
Refractive Index
1.746-1.7631.627-1.639
1
3.25
👆🏻
Optic Character
Biaxial/+
Biaxial/+
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.007-0.0130.006
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Transformation
Spiritual Awareness
Healing
Physical healing
Emotional healing
Qualities Associated
Transformation
Spiritual Awakening