Where to Find Amethyst in Missouri: 3 Mapped Sites
Missouri has 3 documented sites where amethyst have been reported, and the best-known are Ruepple Iron Mine, Steelville, and Moselle Iron Mines. Every site is mapped below with GPS coordinates and links to a full report of access and what's been found there. 3 of the 3 sites are on public-access land.
Last updated: — data compiled by the Rockhounding.org Research Team · methodology
Amethyst Map: Missouri
All 3 amethyst sites in Missouri. Click a pin for the full site report.
Where Amethyst Are Found in Missouri
Amethyst lines cavities in volcanic rock, pegmatite pockets, and hydrothermal veins. Search vein outcrops, pocket zones in granite country, and mine dumps in known districts.
The richest reported sites in Missouri: Ruepple Iron Mine, Steelville, Moselle Iron Mines.
Of the 3 sites, 3 are public access. Check each site report for current land status before you go.
All Amethyst Sites in Missouri
- Ruepple Iron Mine — Public Access
- Steelville — Public Access
- Moselle Iron Mines — Public Access
How to Identify Amethyst
Amethyst is purple quartz: glassy six-sided crystals ending in a point, hardness 7, no cleavage. A steel knife will not scratch it. Color often zones from deep purple at the tip to pale at the base — a natural tell, since dyed impostors color evenly. Fluorite can look similar but scratches easily and cleaves into octahedral corners.
Not sure what you found? Try our identification guide →Frequently Asked Questions
Where can I find amethyst in Missouri?
Missouri has 3 mapped sites where amethyst have been reported. The best-known are Ruepple Iron Mine, Steelville, and Moselle Iron Mines. Each listing on the map above includes GPS coordinates, access type, and what has been found there.
How many amethyst sites are mapped in Missouri?
We have 3 documented amethyst sites in Missouri, compiled from community submissions and published locality records and reviewed by the Rockhounding.org Research Team.
Is it legal to collect amethyst in Missouri?
Casual collecting is generally allowed on BLM and National Forest land for personal, non-commercial use — the standard BLM limit is 25 lbs per day plus one specimen. National parks, monuments, and many state parks prohibit collecting, and private land always requires the owner's permission. Check the site report for each location and verify current land status before you dig.
How do I identify amethyst?
Amethyst is purple quartz: glassy six-sided crystals ending in a point, hardness 7, no cleavage. A steel knife will not scratch it. Color often zones from deep purple at the tip to pale at the base — a natural tell, since dyed impostors color evenly. Fluorite can look similar but scratches easily and cleaves into octahedral corners.
What should I bring to collect amethyst?
The basics: a rock hammer, safety glasses, gloves, a bucket or padded bag for specimens, and a GPS app with the coordinates from this page. Add a spray bottle — wetting a stone makes color and banding far easier to judge in the field.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
Amethyst in Nearby States
Data: community submissions — reviewed and approved by the Rockhounding.org Research Team. Always verify current land status, regulations, and access before visiting any site.