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.

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 ...

Acid Mine Drainage (AMD) happens when polluted water decants from mines and flows over pyrite, which is commonly known as ...