by Andy Randell | Jan 14, 2017
Chalcopyrite Chalcopyrite is a relatively common mineral. It is a sulphide mineral that is a source of copper ore, and is found in a variety of geological...
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by Andy Randell | Oct 17, 2017
Aragonite (december 14th, 2015) Todays Mineral Monday is one of two forms of calcium carbonate – Aragonite (the other being calcite). Aragonite forms...
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