Flint and Alunite Physical Properties

Flint and Alunite Chemical Formula

While comparing Flint 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 Flint and Alunite chemical formula.

• Chemical formula of Flint- SiO2
• Chemical formula of Alunite- KAl3(SO4)2(OH)6

Flint and Alunite Specific Gravity

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