Ref.: NJ State Geol. Annual Rpt. (1893):433; The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 83.
Nearly all the minerals listed for "Newton" are, in fact, from the Limecrest Quarry. Although the quarry is in Sparta Township, Newton is the closest urban area. In the 19th century municipal boundaries were somewhat different than they are today and "Newton" came a lot closer to the actual site than it does today but, even then, did not extend quite so far. However, in older texts, the Limecrest locality was commonly given as "Newton".
The icon for Newton that appears on the Mindat map actually marks the parking lot of a liquor store and is in the outcrop area of the Cambrian Allentown dolomite. A couple blocks south, there was a dolomite outcrop with an abrupt end that was called "crystal cliff" when I was a kid. There were small quartz cryatals in the soil that had weathered out of veins in the dolomite.
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