Krupka, Teplice District, Ústí nad Labem Region, Czechia

Ace of Diamonds Mine, Middleville, Herkimer County, New York, USA

Irhoud Mine, Youssoufia, Marrakesh-Safi, Morocco

South Caradon Mine, Caradon Hill, St Cleer, Cornwall, England, UK

Boldut Mine, Cavnic, Maramureș County, Romania

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