Peridot and Alabaster Physical Properties

Peridot and Alabaster Chemical Formula

While comparing Peridot and Alabaster 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 Peridot and Alabaster chemical formula.

• Chemical formula of Peridot- (Mg,Fe)₂SiO₄
• Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

Peridot and Alabaster Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Alabaster Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Alabaster Optical Properties during the identification of gemstone. Specific gravity of Peridot is 2.30 whereas that of Alabaster is 2.30.