Heights Mine, Westgate, Weardale District, County Durham, England

Naica District, Saucillo, Chihuahua, Mexico

Berbes, Ribadesella, Asturias, Spain

Frazer's Hush Mine, Rookhope, Stanhope, County Durham, England

Blackdene Mine, Ireshopeburn, Stanhope, County Durham, England

Boltsburn Mine, Rookhope, Stanhope, County Durham, England

Milltown Quarry, Milltown, Ashover, Derbyshire, England

Aouli, Mibladen, Aït Oufella Caïdat, Midelt Cercle, Midelt Province, Morocco

Greenlaws Mine, Daddry Shield, Stanhope, County Durham, England

Rogerley Mine, Rogerley Quarry, Stanhope, County Durham, England

Heights Quarry, Westgate, Weardale, County Durham, England

Blackdene Mine, Ireshopeburn, Stanhope, Weardale, County Durham, England

Heights Quarry, Westgate, Stanhope, County Durham, England

Hilton Mine, Scordale, Murton, Eden, Cumbria, England

La Barre Mine, Saint-Jacques-d'Ambur, Puy-de-Dôme, Auvergne-Rhône-Alpes, France

Blanchard Mine, Bingham, Hansonburg District, Socorro County, New Mexico, USA