Alabaster and Andesine Physical Properties

Alabaster and Andesine Chemical Formula

While comparing Alabaster and Andesine 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 Alabaster and Andesine chemical formula.

• Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
• Chemical formula of Andesine- (Na,Ca)Al_1-2Si_3-2O₈

Alabaster and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alabaster and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alabaster and Andesine Optical Properties during the identification of gemstone. Specific gravity of Alabaster is 2.65-2.69 whereas that of Andesine is 2.65-2.69.