Germanium - WikipediaGermanium is a chemical element with symbol Ge and atomic number 32. It is a lustrous, hard, . Because it seldom appears in high concentration, germanium was discovered comparatively late in the history of chemistry. . Today, germanium is mined primarily from sphalerite (the primary ore of zinc), though germanium is.germanium ore concentrating,germanium - USGS Mineral Resources Programscrap, fly ash, germanium concentrates (typically containing. 5% germanium or . Consequently, the 300,000 metric tons (t) of germanium ore reserves at the.
germanium ore concentrating