Montana is called the Treasure State for a reason, known for its thousands of years of mining history and over five hundred mineral specimens.

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A look at the history of analytical instruments used for gem testing. UV-Vis-NIR spectroscopy measures how gemstones absorb and interact with light across the ultraviolet, visible, and near-infrared ...

Posey’s parents were both railroad engineers, and during summers at the family’s cabin in Montana ... and sapphires; gold coins, gold nuggets, a 17th-century Spanish ring.

Forrest Fenn hid a treasure chest filled with gold and jewels in the mountains of Santa Fe, leaving behind a cryptic poem for ...