Wisconsin moonstones are only found in a small corner of Marathon County. This business allows people to dig for them.

One spring day last year, Mark Longman was hiking around Castlewood Canyon State Park with questions that mounted with every boulder and rock wall he passed. A career geologist and longtime Denver ...

A pair of diamonds that formed hundreds of kilometers deep in Earth’s malleable mantle both contain specks of materials that form in completely opposing chemical environments—a combination so unusual ...

A.K. Miles of Salem spent summers as a little girl traveling the Pacific Northwest with her grandparents, collecting rocks and helping her great-grandfather cut and polish them in his lapidary shop.

PORT ANGELES — With something for rockhounds of all ages and lapidary interests, the Clallam County Gem & Mineral Association’s Rock, Gem & Jewelry Show returns for a two-day show. The club hosts its ...

The Loup Valley Gem and Mineral Society's rock collections aren't just about rocks, charter member Cheryl Barnholdt explains ...

WATERLOO — When you come across a conversation between Ray Anderson and Dave Malm, the best thing to do is sit and listen. Both rock enthusiasts, it’s easy to picture the conversation between them ...