Specimen Finds
Amazonite of Pikes Peak: Colorado's Hidden Gem
The Pikes Peak batholith produces some of the world's finest amazonite crystals. Learn where to look and what to collect.
From the Field
Mining news, prospecting tips, Colorado geology, and specimen finds from the Rocky Mountain Mining team.
Specimen Finds
Sweet Home Mine Rhodochrosite: The Alma District Story Behind Colorado's State Mineral
Once a failing silver mine, Sweet Home became one of the most famous specimen localities in the world. Here's the full Alma district story, the Alma King, why rhodochrosite is Colorado's state mineral, and the honest truth about visiting and collecting today.
Read More
Specimen Finds
Rhodochrosite: Why Colorado's State Mineral Commands Premium Prices
Colorado rhodochrosite from the Sweet Home Mine is among the most prized mineral specimens in the world.