The Franklin Mineral Museum’s mission is to preserve and disseminate knowledge related to the mineral wealth, geology, and history of “the greatest mineral locality on Earth,” and to foster scientific inquiry into those subjects.

To that end the Museum acquires, preserves, and displays mineralogical and geological specimens, artifacts, and documents related to the history and mineralogy of the Franklin-Sterling Hill mining district. The Museum also acquires and displays archeological and paleontological specimens and other items of interest.

The Franklin Mineral Museum, a nonprofit educational institution, is located at 32 Evans Street, Franklin, Sussex County, New Jersey. The Museum was created solely for educational and scientific purposes, was incorporated June 2, 1964, and first opened its doors to visitors on October 9, 1965.

The Museum


The museum will be open with the following hours:


Wednesday: 11:00 am to 4:00 pm

Thursday: 11:00 am to 4:00 pm

Friday: 11:00 am to 4:00 pm

Saturday: 10:00 am to 5:00 pm

Sunday: 11:00 am to 5:00 pm

Our products

Museum shop

If your little one likes rocks COME HERE! We had the best time at Franklin Mineral Museum. Beautiful rock displays, interactive and hands on gem and rock collecting! And an awesome mine replica. Knowledgeable and super friendly staff, we had the best day and will be coming back.

S La Sala

Went here for the monthly dig in June. I'm a novice, so I wasn't sure what I was looking for. Many of the experienced diggers are happy to help and explain. I ended up finding an array of specimens. I'd suggest the night dig because the whole ground glows with uv lights. I'd highly recommend coming here! It's so cool and great information. Perfect for kids and adults who like rocks.

Tiffiney B.

My wife and I stopped here during our visit to Minerals Hotel. What a great little find, the staff is friendly and we are looking forward to coming back and bringing our daughter in the near future. This will be a great place for her to learn about geology and history the the mines in NJ.

Richard M

Wed ‒ Fri: 11:00am ‒ 4:00pm
Sat: 10:00am ‒ 5:00pm
Sun: 11:00am ‒ 5:00pm

Visit our Admissions Page

32 Evans Street, Franklin, NJ 07416