Celestine and Augelite Physical Properties
Specific Gravity
3.90-4.00
2.70-2.75
Fracture
Conchoidal
Conchoidal
Cleavage
Perfect on {001}, good on {210}, poor on {010}
From the Greek for luster, for its pearly luster on the cleavage.
Mohs Hardness
3-3.5
4.5-5
Chemical Composition
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Celestine and Augelite Chemical Formula
While comparing Celestine 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 Celestine and Augelite chemical formula.
- Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Celestine and Augelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Celestine and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Augelite Optical Properties during the identification of gemstone. Specific gravity of Celestine is 2.70-2.75 whereas that of Augelite is 2.70-2.75.