Moonstone and Alunite Physical Properties

Moonstone and Alunite Chemical Formula

While comparing Moonstone and Alunite 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 Moonstone and Alunite chemical formula.

• Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
• Chemical formula of Alunite- KAl3(SO4)2(OH)6

Moonstone and Alunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Alunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Alunite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 2.6-2.9 whereas that of Alunite is 2.6-2.9.