Sunstone and Purpurite Physical Properties

Sunstone and Purpurite Chemical Formula

While comparing Sunstone and Purpurite 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 Sunstone and Purpurite chemical formula.

• Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈
• Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

Sunstone and Purpurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sunstone and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.