Wardite and Black Opal Physical Properties

Wardite and Black Opal Chemical Formula

While comparing Wardite and Black Opal 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 Wardite and Black Opal chemical formula.

• Chemical formula of Wardite- NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Wardite and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wardite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wardite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Wardite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.