Galena
Galena is the main ore of lead. It is mostly lead(II) sulphide. Galena is one of the most common and widely used sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms. It is often found with the minerals sphalerite, calcite and fluorite.
Galena Media
Galena with baryte and pyrite from Cerro de Pasco, Peru; 5.8 × 4.8 × 4.4 cm (2.3 × 1.9 × 1.7 in)
Galena "cat's whisker" detector
