Piemontite and Forsterite Physical Properties

Piemontite and Forsterite Chemical Formula

While comparing Piemontite and Forsterite 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 Piemontite and Forsterite chemical formula.

• Chemical formula of Piemontite- Ca2Al3(SiO4)(Si2O7)O(OH)
• Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Piemontite and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Piemontite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Piemontite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.