Australian Opal Cutters Triplet Opal Ring 925 Sterling Silver with cubic zirconia
Classified by the Opal industry as Natural Opal Type 3 - Triplet Opal is Genuine Natural Australian Gem Crystal Opal, a hydrated amorphous form of silica SiO2nH2O consisting of spheres of silicon dioxide molecules arranged in regular, closely packed planes. Backed by Australian Black Opal potch and capped with a cabochon layer of silica quartz. The three layers have the same coefficient of thermal expansion and are guaranteed for life against delamination. Guaranteed free of dyes and artificial colour.
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