Schorl and Danburite Physical Properties

Schorl and Danburite Chemical Formula

While comparing Schorl and Danburite 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 Schorl and Danburite chemical formula.

• Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
• Chemical formula of Danburite- CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Schorl and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Danburite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.97-3.03 whereas that of Danburite is 2.97-3.03.