When it comes to choosing the best pick among Red Gemstones gemstones, Apophyllite is known to be a popular choice!Physical properties of Apophyllite include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Apophyllite Optical Properties are responsible for imparting various physical properties to its structure. Knowledge of these properties is equally important to gem-cutters as well as to consumers. Apophyllite cleavage is nothing but the plane across which the crystal splits during cutting. Apophyllite cleavage is Perfect on (001),and specific gravity of Apophyllite is 2.30-2.50.
The physical properties of Apophyllite, in fact, are imparted by the chemical composition of its individual molecule. The reactivity or inertness of the crystal is solely governed by its chemical structure. Chemical composition of Apophyllite is represented by KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C..