Origin
Southern and central Africa
Southern and central Africa
Streak
Not Available
Greenish, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.51-2.63
3.16-3.43
Fracture
Conchoidal, Conchoidal, Handbook of mineralogy (2001)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Not Available
{110} Good, {110} Good
Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Luster
Waxy, Silky, Resinous, Greasy
Vitreous
Pleochroism
Not Available
Weak: colorless -- very pale green -- very pale green
Dispersion
Not Available
Not Available
Transparency
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
TranslucentAnthony et al, Handbook of mineralogy (2001)
Refractive Index
1.530-1.575
1.662-1.723
Optic Character
Not Available
Not Available
Crystal System
Not Available
Not Available
Birefringence
Not Available
Not Available
Clarity
TranslucentHerve Nicolas Lazzarelli
TranslucentAnthony et al
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