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