Origin
India
Austria
Color
Blue, Greenish
Brown, Green, Brownish, Black, Yellow, gray
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
2.25-2.333.25-3.50
1
7.18
👆🏻
Fracture
-
Conchoidal, Fibrous
Cleavage
Good on {010}
{001} perfect and {100} imperfect
Mohs Hardness
3-46-7
2
10
👆🏻
Chemical Composition
Ca(VO)Si4O10•4(H2O)
CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Resinous
Pleochroism
Visible: X=Z= colorless Y= blue
Strong
Dispersion
0.040.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.5421.729-1.768
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
monoclinic
Birefringence
0.0090.019-0.046
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Calms digestive issues
Respiratory
Good
Good
Reproductive
-
Supports healthy digestion
Digestive
-
-
Psychology
Communication
Abundance
Healing
Emotional healing
Physical healing
Qualities Associated
Communication
Manifestation