Routhierite is a mineral that belongs to the sulfosalt group and is composed of copper, silver, and mercury. Some synonyms for routhierite include mercury-coated copper, silver-coated copper, and copper silver sulfide. Other variations of this mineral include tetrahedrite, tennantite, and enargite. Routhierite has a metallic luster and a black-gray color, making it a popular choice for jewelry and ornamental purposes. It is also used in the production of electrical components and as a source of copper. With its unique properties and versatile uses, routhierite remains a valued mineral in various industries and applications.