Origin
-
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Color
Brown, Blue, Green, Yellow, White
Green, Brown, Colorless, Greenish, Yellow
Streak
White
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.32-3.433.25-3.45
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
Poor on {110} and {100} very poor on {001}
Good on {110}
Mohs Hardness
6-76.5
2
10
👆🏻
Chemical Composition
Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Resinous
Vitreous
Pleochroism
slight in colored varieties
X = colorless to green; Y = colorless
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.703-1.7521.660-1.685
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Orthorhombic
Birefringence
0.004-0.0060.012-0.017
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
Supports heart health
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Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Transformation
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Self-worth