Polyhalite and Kornerupine Physical Properties

Polyhalite and Kornerupine Chemical Formula

While comparing Polyhalite and Kornerupine 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 Polyhalite and Kornerupine chemical formula.

• Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O
• Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Polyhalite and Kornerupine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.