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Montana

Gem Mountain Sapphire Mine (Rock Creek)

Gem locality Documented siteLegal to collect

What you could find

Reported finds from this ground.

Crystals and mineralsCrystals and minerals

Also reported: Montana sapphire (blue, green, yellow, pink).

Photos via Wikimedia Commons: Stephanie Clifford from Arlington, VA, USA (CC BY 2.0).

Why this spot

Tertiary

Famous Rock Creek sapphire fee-dig near Philipsburg.

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.