Melanie Mackay, PGeo, EGBC (Engineers and Geoscientists British Columbia) 35256, APEGA (Association of Professional Engineers and Geoscientists of Alberta 305012), is a director and qualified person ...
However, only two carbonate minerals—celestite and strontianite—contain enough strontium for commercial use. Celestite is ... in limestone rocks composed of calcite and dolomite.