Augite from
Passaic Pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Passaic Pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
© 2011 Harold Moritz

Description
Comments:	Now recognized as augite, this material was formerly called "jeffersonite." It occurs as dark colored, rough crystals to over 20 cm in weathered ore zones between the folds of the Sterling Hill orebody. Good crystals also occur at the contact of very tough, massive, dark augite/hendricksite/augite rock with marble. Crystal terminations typically slightly rounded.
Habit:	prismatic with dome terminations
Colour:	brown-black to green-black
Quality of samples:	Good crystals or rich for species - important (!)
Rarity at site:	Very common
Confirmation
Validity:	Believed Valid
References
References:	Dunn(1995):Pt3:432.
Data
Mineral Data:	Click here to view Augite data
Locality Data:	Click here to view Passaic Pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

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Current server date and time: 16th Feb 2012 10:08:47