Unusual Graphite Crystals FROM THE LIME CREST QUARRY, SPARTA, NEW JERSEY.

From: Rocks & Minerals | Date: September 1, 1997| Author: JASZCZAK, JOHN A. | Copyright information

New Jersey's Lime Crest quarry yields unique graphite microcrystals of interest to collectors. Their morphologies vary from almost spherical aggregates to sharp hexagonal forms. They occur in marble primarily on the lower level of Lime Crest, with excellent specimens measuring 2 mm across. Some specimens show secondary graphite overgrowths, while others are pseudocubic with rounded corners and edges and flattened sides.

Microcrystals of graphite occurring in the Franklin Marble at t...

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