Alabaster and Tourmaline Physical Properties

Alabaster and Tourmaline Chemical Formula

While comparing Alabaster and Tourmaline 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 Tourmaline chemical formula.

• Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
• Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

Alabaster and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alabaster and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alabaster and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Alabaster is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.