Origin
Pakistan, Tanzania
Kenya, Southern and central Africa
Color
Brown, gray, Green, Blue, rose, Red
Green, Brown, Yellow, Red
Streak
White, Colorless
-
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
3.20-3.503.55-3.70
1
7.18
👆🏻
Fracture
Uneven, Conchoidal, Even
-
Cleavage
Perfect {010} imperfect {100}
Perfect
Mohs Hardness
6-74-7
2
10
👆🏻
Chemical Composition
Ca2Al3(SiO4)3(OH)
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
Luster
Vitreous
Vitreous
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Transparent
Refractive Index
1.685-1.7071.710-1.735
1
3.25
👆🏻
Optic Character
-
Biaxial/+
Crystal System
Orthorhombic
-
Birefringence
0.006-0.0180.012-0.033
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Digestive
-
-
Psychology
Transformation
Intuition
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Tranquility