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 ...

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

The qualitative and quantitative properties of ore minerals are studied in the Museum's ... A section through a cube of gold perched on a grain of pyrite now included in quartz. A similar photo of the ...