Black Opal and Angelite Physical Properties

Black Opal and Angelite Chemical Formula

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

• Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
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Black Opal and Angelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Angelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Angelite Optical Properties during the identification of gemstone. Specific gravity of Black Opal is Not Available whereas that of Angelite is Not Available.