Apophyllite KF and Albite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.33-2.37
2.60-2.65
Fracture
Uneven, Brittle, Uneven, Brittle, Uneven
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
Cleavage
Perfect on {001}, imperfect on {110}
Perfect on {001}, very good on {010}, imperfect on {110}
Mohs Hardness
4.5-5
6-6.5
Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Apophyllite KF and Albite Chemical Formula
While comparing Apophyllite KF and Albite 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 Apophyllite KF and Albite chemical formula.
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Apophyllite KF and Albite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Albite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.60-2.65 whereas that of Albite is 2.60-2.65.