Sphalerite and Augelite Physical Properties
Specific Gravity
3.95-4.10
2.70-2.75
Fracture
Uneven
Conchoidal
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
From the Greek for luster, for its pearly luster on the cleavage.
Mohs Hardness
3.5-4
4.5-5
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Sphalerite and Augelite Chemical Formula
While comparing Sphalerite and Augelite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Sphalerite and Augelite chemical formula.
- Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Sphalerite and Augelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sphalerite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.