Identifying a mineral might sound straightforward: Analyze its chemistry, compare it to known minerals and voilà. But for geologists, this process can be a time-consuming puzzle requiring specialized ...

When news broke late last month that an unidentified bright blue mineral had been found in Adventure Mining Company’s historic Upper Peninsula copper mine, many people made speculations on social ...

Everyone switched off their headlamps and there we stood together in total darkness, inside the San Gabriel Mountains. Yes, inside. I had joined a local caving group in an attempt to understand more ...