Ulexite and Pyromorphite Physical Properties

Ulexite and Pyromorphite Chemical Formula

While comparing Ulexite and Pyromorphite 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 Ulexite and Pyromorphite chemical formula.

• Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Ulexite and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ulexite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ulexite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Ulexite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.