Pyrite is useful and offers some worth ... flakes, dust or veins of gold ore. Because of its lustrous yellow color, gold has been revered across millennia and civilizations.

Pyrite is also an abundant mineral and was first called fool's gold in the California gold rush, when less-experienced miners believed this yellowish, shiny material was real gold. In the mining ...

The qualitative and quantitative properties of ore minerals are studied in the Museum's reflected light microscopy ... with horizontal field about 220 microns. A section through a cube of gold perched ...

A planned customs rule change in China has triggered a significant drop in gold ore and concentrate imports ... content would ...

Land-based mines often produce low-grade ore that requires extensive ... McLeish et al, Extreme shifts in pyrite sulfur isotope compositions reveal the path to bonanza gold, Proceedings of the ...