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Beryl mineral specimen by Rob Lavinsky / iRocks.com, Wikimedia Commons, CC BY-SA 3.0.

Aquamarine

It’s a clear blue semi-precious stone, reminiscent of the sea water for which it’s named. Aquamarine has long been associated with the sea. The Greeks and Romans believed it has the power to calm waves and keep sailors safe. Pliny the Elder said the gem seemed to have come from a mermaid’s treasure chest. Yet America’s biggest source of aquamarine is nowhere near the ocean. Mount Antero, the tenth highest peak in Colorado, has a rich gem field near the summit, popular with amateur "rock hounds." One discovered the biggest aquamarine ever found in North America, a specimen measuring about two feet by three. The March birthstone has also been found at Mounts White, Baldwin and Princeton, and in 1971, aquamarine became the official state gem of Colorado.

The words "Colorado Postcards" overlaid on top of a sun beams

About Colorado Postcards

Colorado Postcards are snapshots of our colorful state in sound. They give brief insights into our people and places, our flora and fauna, and our past and present, from every corner of Colorado. See more postcards.


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The Denver Mint

The first mint in Colorado Territory was a private company in Denver that took gold dust and made unofficial coins. By 1906, an official U.S.

Miners, all sorts

Hard-rock mining brought a workforce to Colorado in the 1800s. Successful operations, like the Smuggler Mine near Aspen, had hundreds working two or three shifts a day.