Sneech Pond Copper Mines (Copper Mine Hill)

Chalcopyrite

Also found at:

• Galena Mining Dumps (Tri-State District)
• Ringwood Mines / Ringwood State Park
• Cooper's Gem Mine

Garnets

Deep red almandine garnets are found in many states. Idaho's star garnets are among the rarest in the world.

Also found at:

• Alabama Gold Camp
• Bob Lee Mine
• Golden Stake Mine

Magnetite

Black iron oxide mineral with natural magnetism. New York's Adirondack region and other iron districts produce magnetite specimens.

Also found at:

• Cove Creek Bridge
• Magnet Cove Area
• Betts Rhodonite Mine

Molybdenite

Also found at:

• Conklin Limestone Quarry

Rhodonite

Pink manganese silicate mineral. Massachusetts's Wareham mines are historic US sources for rhodonite specimens.

Also found at:

• Last Chance Mine
• Betts Rhodonite Mine
• Wareham Mines

Quartz Crystals

Clear, smoky, and rose quartz crystals are among the most common and rewarding rockhounding finds. Arkansas produces world-class quartz.

Also found at:

• Alabama Gold Camp
• Horseshoe Mine
• Lake Martin Rockhounding Area

Feldspar

Common rock-forming mineral group. Found in granites and pegmatites throughout the US, often associated with gem minerals.

Also found at:

• Lake Martin Rockhounding Area
• Coursey Pond
• Hoopes Reservoir

Mica

Also found at:

• Coursey Pond
• Hoopes Reservoir
• Killen Pond

Beavertail State Park Minerals

Jamestown, Rhode Island · State Park

Rocky shoreline for quartz veins and unusual metamorphic rock formations. Beavertail's geology is some of the oldest in the region.

Bonnet Shore Beach

Narragansett, Rhode Island · Public Beach

Pegmatite outcrops along the Bonnet Shores coast carrying beryl and quartz in coarse granitic pods — rare gem-family minerals in place on a public RI ...

Cumberlandite Beds

Cumberland, Rhode Island · Public Land

The only location in the world for cumberlandite (Rhode Island's state rock). A rare iron-rich igneous rock found only in a small area of RI.

Diamond Hill Quartz

Cumberland, Rhode Island · Public Land

Massive white quartz outcrop at Diamond Hill Town Park in Cumberland, featuring a 350-foot vertical face on 'The Big Hill.' Historically Rhode Island'...

Jamestown Bridge Area

Jamestown, Rhode Island · Public Land

Metamorphic rocks exposed near the Jamestown bridge landing on Conanicut Island, a well-documented mineral locality known for staurolite (cross-shaped...

Moosup River

Coventry, Rhode Island · Public Land

River gravels and exposures along the Moosup River, which flows through the Moosup Valley area underlain by Moosup Valley gabbro, Northbridge and Putn...