Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver. ... Galena Lead glance Category Sulfide mineral, octahedral subgroup Formula (repeating unit) PbS Strunz classification 2.CD.10 Dana classification 2.8.1.1 Origin :- Australia , Canada , United Kingdom Payment Terms :- LC/SBLC