Final answer:
Pyrite (FeS2) is a metallic mineral commonly found in bituminous coal and metal ores. It plays a critical role in microbial leaching of ores and acid mine drainage.
Step-by-step explanation:
Pyrite (FeS2) is a metallic, yellow mineral that is commonly found in bituminous coal and metal ores. It is often called Fool's Gold because it resembles gold in color. Pyrite is a critical component in the microbial leaching of ores and acid mine drainage.