Mindat Logo

Mullica Hill, Gloucester Co., New Jersey, USA

Located about 25km SSW of Camden.

Cretaceous sedimentary rock with phosphate nodules and phosphate replacement of fossils (belemnites).

Mullica Hill has long been known for vivianite which occurs principally as a replacement of calcareous fossils, belemenites and oyster-like shells of exogyra. These phosphatized fossils are found in the Navasink formation, a glauconitic sand of latest Cretaceous age. The locality is often described in the literature as being “along the banks of Raccoon Creek”. This is not exactly true for the locality that has produced phosphates since the 1970’s.

The site that has produced ferrostrunzite and other phosphate minerals, that are oxidation products of vivianite, is a small area in the bank of a tributary to Raccoon Creek. This tributary is usually dry but has created a significant ravine. The actual site is approximately 650 feet southwest from the west side of the parking lot of the Raccoon Valley Swim Club off the end of Church Street in Mullica Hill. At this locality the bank of the west side of the ravine projected outward slightly into the ravine. The sediments of the Navasink formation, normally greenish, were oxidized to yellowish orange. Because of the clay content of the material one could get extremely dirty, very quickly while searching for specimens.


Ref: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 745.

Mineralogical Record (1980): 9-10.





Map Reference: 39°44'0"N , 75°13'48"W

Important Disclaimer: This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

Switch between Map and Globe

Mineral list contains contents from all localities listed at bottom of page


Mineral List:
  • Beraunite
  • Cacoxenite
  • Ferrostrunzite (TL)
  • Kertschenite
  • Phosphosiderite
  • Rockbridgeite
  • Strengite
  • Strunzite
  • Vivianite


    9 entries listed. 8 valid minerals. 1 type locality (valid mineral).

    Localities in this Region:
    USA
     
    • New Jersey
      • Gloucester Co.
        • Mullica Hill

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
    This page is currently not sponsored. Click here to find out how you can sponsor this page.


    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Jobs in New Jersey, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.