Bonsall Moor, Derbyshire, England
Beaumont Mine, Allenheads, Northumbria, England
Blackdene mine, Ireshopeburn, Weardale, Co. Durham, England
Cerro Huañaquino, Potosi department, Bolivia
Braldu Valley, Skardu District, Baltistan, Northern Areas, Pakistan
San Juan Del Rio, Durango, Mexico
Shigar Valley, Skardu District, Baltistan, Northern Areas, Pakistan
Moonen Bay, Duirinish, Isle of Skye, Scotland
Heights quarry, Westgate, Weardale, Co. Durham, England
Boulby Mine, Loftus, North Yorkshire, England
Cambokeels Mine, Eastgate, Weardale, Co. Durham, England
Whitesmith Section, Strontian Mines, Strontian, western Lochaber, Highland Region, Scotland
Hesket Quarry, Kirkland, Frizington, Cumbria, England
Squilver quarry, Disgwylfa Hill, Shropshire, England
Trepca Mine, Kosovska Mitrovica, Kosovo
M'fouati mine, M'fouati District, Bouenza Department, D. Rep. of Congo
Tankerstown mine, Bonmahon, Co. Waterford, Ireland
ACF Mine, Mibladen, Khenifra, Morocco
Strontian Barite Mine, Strontian, Highland Region, Scotland
Florence Mine, Egremont, Cumbria, England