Chlorastrolite and Alabaster Physical Properties

Chlorastrolite and Alabaster Chemical Formula

While comparing Chlorastrolite 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 Chlorastrolite and Alabaster chemical formula.

• Chemical formula of Chlorastrolite- Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
• Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

Chlorastrolite and Alabaster Specific Gravity

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