Ancient Quartzite Deposits Lure Rockhounds to South Idaho Mountain

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Rockhounding enthusiasts are flocking to a mountain range in southern Idaho in search of ancient quartzite and pyrite deposits that date back millions of years. The Carbonate Mountain area, located about 13 miles south of Sun Valley, is known for its rich geological history and abundance of precious and semi-precious stones.

Why it matters

Idaho is a popular destination for rockhounding, with over 70 different varieties of gems and minerals found throughout the state. The ancient quartzite deposits on Carbonate Mountain provide a unique opportunity for enthusiasts to uncover rare and valuable stones, though the activity requires patience and skill.

The details

According to local reports, the quartzite and pyrite found on Carbonate Mountain date back to the Carboniferous period, over 300 million years ago. The stones are most commonly found in clusters near riverbeds and other natural formations. While rockhounding can be a rewarding hobby, it's important for enthusiasts to avoid trespassing on private property or mineral plots, which could be dangerous.

• Rockhounding season is currently underway in Idaho.