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Marcasite, Dolomite
ReocÃn Mine, ReocÃn, Cantabria, Spain
Marcasite, Dolomite
Regia mine, Bellmunt del Priorat, Priorat, Tarragona, Catalonia, Spain
Sphalerite, Marcasite, Calcite
Washington County Aggregates Quarry, Washington County, Missouri, USA
Sphalerite, Marcasite, Calcite
Washington County Aggregates Quarry, Washington County, Missouri, USA
Quartz, Siderite, Marcasite
Panasqueira Mines, Portugal
Quartz, Siderite, Marcasite
Panasqueira Mines, Portugal
Chalcopyrite, Marcasite, Dolomite
Picher Field, Ottawa County, Oklahoma, USA
Chalcopyrite, Marcasite, Dolomite
Ben Hogan Quarry, Black Rock, Lawrence County Zinc Mining District, Lawrence County, Arkansas, USA
Marcasite, Dolomite
ReocÃn Mine, ReocÃn, Cantabria, Spain
Marcasite, Dolomite
Thorold Quarry, Thorold Township, Niagara Region, Ontario, Canada
Chalcopyrite, Dolomite, Marcasite
Joplin Field, Jasper County, Missouri, USA
Calcite, Dolomite, Marcasite
Fletcher Mine, West Fork, Reynolds County, Missouri, USA
Calcite, Dolomite, Marcasite
Fletcher Mine, West Fork, Reynolds County, Missouri, USA
Pyrite, Marcasite, Dolomite
Calcite quarry, Holzen, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
Marcasite, Dolomite
Calcite quarry, Holzen, Arnsberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
Marcasite, Pyrite, Dolomite
Highway 69 Roadcut, Felch, Dickinson County, Michigan, USA
Marcasite, Pyrite, Dolomite
Highway 69 Roadcut, Felch, Dickinson County, Michigan, USA
Pyrite, Marcasite, Dolomite
Highway 69 Roadcut, Felch, Dickinson County, Michigan, USA
Sphalerite, Marcasite, Calcite
LaFarge Corp. Quarry, Lockport, Niagara County, New York, USA
Sphalerite, Marcasite, Calcite
LaFarge Corp. Quarry, Lockport, Niagara County, New York, USA
Sphalerite, Marcasite, Calcite
LaFarge Corp. Quarry, Lockport, Niagara County, New York, USA
Marcasite, Dolomite
Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Marcasite, Dolomite
Groveland Mine, Randville, Dickinson County, Michigan, USA
Marcasite, Dolomite
LaFarge Corp. Quarry, Lockport, Niagara County, New York, USA
Chalcopyrite, Sphalerite, Dolomite
Baxter Springs, Picher Field, Cherokee County, Kansas, USA
Baryte, Marcasite, Sphalerite
G.P. Materials South Quarry, Washington County, Missouri, USA
Marcasite, Dolomite
Buckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Marcasite, Dolomite
Buckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Marcasite, Dolomite
Buckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Marcasite, Dolomite
Buckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Marcasite, Dolomite
Buckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA
Dolomite, Calcite, Marcasite
Barrett quarry, Norfolk-Norwood, St. Lawrence County, New York, USA
Galena, Marcasite, Calcite
Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Galena, Marcasite, Calcite
Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Galena, Marcasite, Calcite
Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Galena, Marcasite, Calcite
Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Dolomite, Quartz, Marcasite
Barrett quarry, Norfolk-Norwood, St. Lawrence County, New York, USA
Dolomite, Quartz, Marcasite
Barrett quarry, Norfolk-Norwood, St. Lawrence County, New York, USA
Dolomite, Marcasite
Benchmark Quarry, St Johnsville, Montgomery County, New York, USA
Dolomite, Marcasite
Benchmark Quarry, St Johnsville, Montgomery County, New York, USA
Dolomite, Quartz, Marcasite
Lockport, Niagara County, New York, USA
Marcasite, Dolomite
Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Galena, Dolomite, Chalcopyrite
Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Galena, Dolomite, Chalcopyrite
Sweetwater Mine, Ellington, Reynolds County, Missouri, USA
Marcasite, Dolomite
ReocÃn Mine, ReocÃn, Cantabria, Spain
Marcasite, Dolomite, Calcite
Lowville quartz locality, Lowville, Lewis County, New York, USA
Chalcopyrite, Sphalerite, Marcasite
Clemensberg quarry, Hildfeld, Winterberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
Sphalerite, Chalcopyrite, Marcasite
Clemensberg quarry, Hildfeld, Winterberg, Hochsauerlandkreis, Arnsberg, North Rhine-Westphalia, Germany
Calcite, Dolomite, Quartz
Lowville quartz locality, Lowville, Lewis County, New York, USA
Galena, Sphalerite, Calcite
Treece, Picher Field, Cherokee County, Kansas, USA