Birkhill Minerals - Stockton Collection Pt V: 19 Apr - 26 Apr 2018

Ojuela Mine, Mapimi, Durango, Mexico

Tampa Bay, Hillsborough County, Florida, United States of America

Brandberg, Dâures, Erongo Region, Namibia

Karibib District, Erongo Region, Namibia

Blackdene Mine, Weardale, County Durham, United Kingdom

Geddington, Northamptonshire, United Kingdom

Alston Moor, Cumbria, United Kingdom

Colebrook Hill Mine, Rosebery district, West Coast Municipality, Tasmania, Australia

Minas Gerais, Brazil

Bangui Commune, Central African Republic

Pune (Poonah), Maharashtra, India

Settlingstones Mine, Newbrough, Northumberland, United Kingdom

Grand View Mine, Grand Canyon, Coconino County, Arizona, United States of America

Pallaflat Mine, Bigrigg, Egremont, Cumbria, United Kingdom