<Tr> <Th_colspan="2"> General </Th> </Tr> <Tr> <Th> </Th> <Td> Sulfide mineral, octahedral subgroup </Td> </Tr> <Tr> <Th> Formula (repeating unit) </Th> <Td> PbS </Td> </Tr> <Tr> <Th> Strunz classification </Th> <Td> 2. CD. 10 </Td> </Tr>

The principal natural ore of lead is galena which is primarily