Zinc is a chemical element with the atomic number 30 and symbol Zn, and is the first element of group 12. It is the 24th most abundant metal in Earth’s crust. Zinc’s oxide compounds in nature are predominantly smithsonite (ZnCO₃) and zincite (ZnO), while its sulfide compounds include hemimorphite (Zn₄[(OH)₂-Si₂O₇]·H₂O) and sphalerite (ZnS), with sphalerite being the most important zinc ore globally. Major deposits of sphalerite are concentrated in Australia, Asia, and the United States. The laboratory of Faramine Asia Industrial and Mineral Group offers zinc ore analysis and mineral composition testing services.