Manasquan Beach Gravels

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:

• Crater of Diamonds State Park
• Crystal Grove Diamond Mine
• Herkimer Diamond Mines

Fossils

From shark teeth in Florida to dinosaurs in Montana, the US offers world-class fossil hunting for all skill levels.

Also found at:

• Fairy Stone State Park
• Calvert Cliffs State Park
• Flag Ponds Nature Park

Petrified Wood

Ancient wood turned to stone. Arizona's Petrified Forest and Washington's Ginkgo Petrified Forest are world-famous.

Also found at:

• Sucker Creek
• Petrified Forest National Park
• Petrified Forest BLM Area

Franklin Furnace / Sterling Hill

Franklin/Ogdensburg, New Jersey · Museum

World-famous for fluorescent minerals. Over 340 minerals identified here including 35 type localities. Sterling Hill Mining Museum offers public colle...

Cape May County (Cape May Diamonds)

Cape May, New Jersey · Public Land

Beachcombing for 'Cape May diamonds' — clear quartz pebbles worn smooth by the ocean. Found along Cape May beaches after storms.

New Jersey Zeolite Beds (Watchung)

Watchung, New Jersey · Public Land

Watchung basalt flows for zeolite minerals, prehnite, and quartz. Road cuts and exposures in the First Watchung Mountain area.

Paterson Quarry / Lambert Castle

Paterson, New Jersey · Public Land

Historic quarry in Paterson for prehnite, zeolites, and quartz crystals. A classic New Jersey mineral collecting locality.

Franklin Mineral Museum

Franklin, New Jersey · Museum

Geology and mining museum at the former Franklin Mine, one of the world's finest permanent exhibits of fluorescent minerals. Visitors can collect spec...

Jean & Ric Edelman Fossil Park

Sewell, New Jersey · Museum

A large marl pit operated by Rowan University where visitors can search for amber and Cretaceous fossils. 72-million-year-old fossil beds with shells,...