The House of Fabergé specialized in the creation of little treasures intended as opulent personal gifts. In creating luxurious accessories for a desk or tabletop, Fabergé often used native hardstones such as multicolored agate and quartz, green nephrite, pink rhodonite, rock crystal, and pale green bowenite found in the Ural Mountains of western Russia. Fabergé's designers often paired hardstones with gold mounts, particularly in the St. Petersburg workshop where the goldsmiths were concentrated.