Astrology
Origin
India, Brazil, China, Australia
Brazil, Southern and central Africa
Color
Green, Red, Yellow
Blue, Green, Black
Streak
Not Available
White
For which Rashi?
All
Gemini, Sagittarius, Gemini, Sagittarius, Gemini, Sagittarius
Planet
Not Available
Jupiter
Element of Planets
Air, Earth
Not Available
How to Wear?
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Projective
Deities
Not Noted
Gia
Not to wear with
Not Available
Not Available
Powers
Healing
Not Available
Birthstone
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.61
3.04-3.17
Fracture
Not Available
Uneven, Uneven, Gemstones of the world (2001) More from other references
Cleavage
Not Available
{001} Indistinct, {???} Indistinct
Mohs Hardness
6.5-7
5.5
Chemical Composition
Not Available
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Optical Properties
Luster
Vitreous
Not Available
Pleochroism
Not Available
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Dispersion
Not Available
0.01
26
Transparency
Not Available
Transparent, Translucent
Refractive Index
1.53-1.54
1.604-1.646
Optic Character
Not Available
Not Available
Crystal System
Trigonal
monoclinic
Birefringence
0.004
0.031-0.036
Clarity
Not Available
Transparent
Benefits
Physical
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
