Origin
India
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Color
Blue, Greenish
Green, Brown, Colorless, Greenish, Yellow
Streak
Blue, 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
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.25-2.333.25-3.45
1
7.18
👆🏻
Fracture
-
Conchoidal, Uneven
Cleavage
Good on {010}
Good on {110}
Mohs Hardness
3-46.5
2
10
👆🏻
Chemical Composition
Ca(VO)Si4O10•4(H2O)
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Pearly
Vitreous
Pleochroism
Visible: X=Z= colorless Y= blue
X = colorless to green; Y = colorless
Dispersion
0.040.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.5421.660-1.685
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.0090.012-0.017
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Self-worth