Behr Garnet Mine, Chelsea, Bethel Township, Delaware Co., Pennsylvania, USA
Old Garnet mines, 1 mile southwest of Chelsea (abandoned). Host rock is Baltimore Gneiss. Garnet occurs massive and in gabbro at the contact point of serpentinite and gabbro, at approximately the lay of Green Creek bed.
Knowledge of these deposits were recorded as early as 1843, however interest in exploiting them did not come until the mid 1870's. First was Charles Williams, who owned the farm on which the deposits were located. His interest lay merely on the ornamental uses of the larger crystals, but quality crystals of size proved few and far between. The deposits soon attracted the attention of "Mineral John" Smedley, a then famous local prospector/mineralogist. Having no luck garnering the interest of local entrepreneurs, Mr. Smedley eventually peaked the interest of the Herman Behr & Co. of 79 Beekman Street, New York, which set up operations at the site in 1879. The garnets were recovered for use in abrasive papers, grinding wheels and marble polish. These deposits proved to be of a good quality, and plentiful enough to continue operation of the mines until as late as 1912.
The open pit workings of the original Behr Mine are now largely gone. The Conchester Highway (Rt. 322) was built through the middle of the pit, and though the back wall still exists, no mineralized zones have been observed. The area currently collected is actually the site of the American Glue Company Mine. Only Garnet Mine Road separated this site from the Behr workings, and was operated briefly by Behr after American Glue Co. pulled out. (ref./obsv.: J. Roger Mitchell, Del. Co. Inst. Sci.
5 entries listed. 4 valid minerals.
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Locality Updated: Tresminas Mines, Tresminas, Vila Pouca de Aguiar, Vila Real District, PortugalFrom Rui Nunes, 12th Dec 2013 12:23:59