Gold-plated Necklace BC0034

Zircon or zirconite is a gemstone, a nesosilicate mineral and owes its name to the Arabic word zirgun. It occurs in metamictic phases mainly in rare earth metals and is the only stone that competes the diamond both in terms of shine and the other properties (clarity, cut, etc.)

Chalcedony is a mineral which consists of silicon dioxide. It is found in botryoidal, stalactite-like aggregates, in geodes, replacing fossils and other minerals. It is deposited from aqueous solutions at medium to low temperatures and is used as a decorative stone.