Opal Type: Triplet Opal
Size of the Opal: 9x7 mm
Metal: 925 Sterling Silver
Dimension of Tie Bar: 51x7mm
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 color.