Apophyllite and Herderite Physical Properties

Apophyllite and Herderite Chemical Formula

While comparing Apophyllite and Herderite 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 and Herderite chemical formula.

• Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
• Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Apophyllite and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.