Here is a selection of articles I've written about different mineralogical subjects.
Thunder Bay Amethyst
06/14/2022
This article is jointly authored by Raymond McDougall, David K. Joyce and Ian Nicklin. Except as otherwise credited, all photographs are R. McDougall photos. Just […]
Background The Tanco Mine is a tantalum-cesium-lithium producer located in Southern Manitoba, Canada, east of Winnipeg. The pegmatite, which does not outcrop to surface, was […]
Sudbury Mining District – History, Geology and Mineralogy
06/13/2022
By David K. Joyce, Newmarket, Ontario and Roger Poulin, Val Caron, Ontario Introduction The Sudbury Mining Area is one of the most prolific metal mining […]
Mineral Occurrences in the Paleozoic Rocks of Southwestern Ontario
06/11/2022
Background There are about 40 limestone and dolomite quarries in south-western Ontario but only a few of them have produced significant mineral specimens. All of […]
General Last November, mindat.org, the awesome internet mineralogical database and forum, plus the Spirifer Geological Society, from Poland, organized a mineralogical conference in Morocco. The […]
General During August of 2007, I was privileged to visit the Mary River Project of Baffinland Iron Mines Ltd. (Baffinland), in the Arctic region of […]
About the Red Lake Mine and Specimen Recovery General The Red Lake Mine, owned by Goldcorp Inc., of Toronto, Ontario, Canada, is, currently, the highest […]
Gibson Road East: Collecting in the Calcite Vein-Dykes
06/09/2022
By David K. Joyce and Raymond McDougall The land around Gibson Road East, near Tory Hill, Ontario abounds with calcite vein-dykes and the minerals that […]
Copper Collecting at Mamainse Point, Ontario, Canada
06/08/2022
Mamainse Point has long been known as a source of copper, in particular, native copper. Since the earliest times in North America, prospectors, explorers and […]
Introduction The Broken Hammer PGE-copper deposit was originally discovered by Wallbridge Mining Company Ltd geologists in the fall of 2003, using grass-roots exploration techniques. The […]
