Selenite and Malachite Physical Properties

Selenite and Malachite Chemical Formula

While comparing Selenite and Malachite 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 Selenite and Malachite chemical formula.

• Chemical formula of Selenite- CaSO4·2H2O
• Chemical formula of Malachite- Cu₂CO₃(OH)₂

Selenite and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Selenite and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Selenite and Malachite Optical Properties during the identification of gemstone. Specific gravity of Selenite is 3.25-4.10 whereas that of Malachite is 3.25-4.10.