Sellaite and Rock Crystal Physical Properties

Sellaite and Rock Crystal Chemical Formula

While comparing Sellaite and Rock Crystal 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 Sellaite and Rock Crystal chemical formula.

• Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
• Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

Sellaite and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sellaite and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sellaite and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Sellaite is 2.65 whereas that of Rock Crystal is 2.65.