dark gneiss

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Locality: Roxbury Township, Morris Co., New Jersey, USA

This is one sample I collected from a road cut blast just East of exit 28 on Route 80 in the summer of 2008. It is about 6" long. It appears to be a gneiss with a lot of hornblende. Similar to an amphibolite perhaps.

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Photo added: 18th Dec 2008

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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