(The Center Square) — Maine lawmakers are wrangling along party lines over proposals to restrict or expand lithium mining in western Maine, with the valuable metal in high demand for rechargeable ...

This article is part of The State of Science, a series featuring science stories from public radio stations across the United States. Five years ago, professional gem hunters Mary and Gary Freeman ...

The world holds several hundred active gold mines, but not all are created equal. The world’s largest gold operation by production is Barrick Gold (TSX:ABX,NYSE:GOLD) and Newmont's (TSX:NGT,NYSE:NEM) ...