John Cancalosi / Chalcopyrite (CuFeS2, copper iron sulfide) (Golden variety), a major ore of copper. Sample from China.
01346289
John Cancalosi / Galena (PbS, lead sulfide), the primary ore of lead. Sample from Madan, Bulgaria.
01346206
John Cancalosi / Red Quartz (SiO2). Sample from Orange River, South Africa.
01346246
John Cancalosi / Galena (PbS, lead sulfide), the primary ore of lead.
01346253
John Cancalosi / Galena (PbS, lead sulfide), the primary ore of lead. Sample from Madan, Bulgaria.
01346227
John Cancalosi / Galena (PbS, lead sulfide), the primary ore of lead, on Quartz (SiO2), the most common mineral in the Earth's crust. Sample from Madan, Bulgaria.
01346284
John Cancalosi / Galena (PbS, lead sulfide), the primary ore of lead. Sample from Sweetwater Mine, Reynolds County, Missouri, USA.
01346180
John Cancalosi / Galena (PbS, lead sulfide), the primary ore of lead. Sample from Sweetwater Mine, Reynolds County, Missouri, USA.
01346245
John Cancalosi / Galena (PbS, lead sulfide), the primary ore of lead.
01346241
John Cancalosi / Chalcopyrite (CuFeS2, copper iron sulfide), a very important economic ore (Golden variety). Sample from Peru.
01346250
John Cancalosi / Fluorite (CaF2, calcium fluoride) on Sphalerite (ZnS, zinc sulfide). Fluorite is a source of fluorine-used in the manufacture of milk glass-as a flux for the steel industry and in refining of aluminum...
01346240
John Cancalosi / Hematite, the main ore of iron. Sample from Luna County, New Mexico.
