Rockhounding in Pima County, Arizona

4 mapped rockhounding spots in Pima County. Most commonly produces copper, fluorite, melanterite, molybdenum.

Pima County rockhounding photos

Representative spot and material photos from this county, shown where verified public image records are available.

1 photo

Fluorite 57308 at Neptune Mine near Grays Spring, Pima County, Arizona — Neptune Mine near Grays SpringPima County, Arizona

Minerals reported in Pima County

Copper2
Fluorite1
Melanterite1
Molybdenum1
Pyrite1
Willemite1

Standout in Pima County

Hand-picked spot in Pima County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.

Top pick
Neptune Mine near Grays Spring
Public
Pima County
Neptune Mine is a focused Arizona fluorite locality, with Mindat and MRDS records describing a former fluorspar mine where fluorite occurs in lenses and stringers along a schist-granite contact zone. The site adds mineral diversity to the Arizona list because it is a documented industrial-mineral occurrence rather than another chalcedony or placer-gold wash.
Fluorite

Spots in Pima County

Spot	Minerals	Coordinates	Access
Dumps near Esperanza MineElams Loop	Copper Molybdenum	31.8670, -111.1298	Public
Neptune Mine near Grays SpringSouth Sierrita Mountain Road	Fluorite	31.9064, -111.2081	Public
Sierrita Mountain Mine Dumps	Melanterite Copper Pyrite	31.8777, -111.1950	Public
South Yuma MineCoyote Pass Trail	Willemite	32.3147, -111.1221	Public

Neighboring counties in Arizona

Adjacent rockhounding counties, ranked by how close their centroids sit to Pima County. A natural extension if Pima County is already on your trip plan.

Pima County FAQ

Where can I rockhound in Pima County, Arizona?+

RockHoundR tracks 4 rockhounding spots in Pima County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Pima County?+

Spots in Pima County most often produce Copper, Fluorite, Melanterite, Molybdenum, Pyrite. Individual spots can vary widely.

Are these Pima County rockhounding spots on public land?+

Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.

Plan a Pima County rockhounding trip

Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.