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International Talc Company Mine (Reynolds Mine), Talcville, St. Lawrence Co., New York, USA
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International Talc Company Mine, Talcville, St. Lawrence Co., New York, USA

Photo: 2009 John J. Duck
Latitude: 44°18'55"N
Longitude: 75°17'59"W
A talc mine located 0.8 km (2,700 feet) NE of Talcville.

Note to mineral list:

Material labelled " tirodite" from the International Talc Company mine, Talcville, New York, USA, has been shown to be manganocummingtonite by electron microprobe (by Mike Hawkins, curator at the NY State Museum mineral collection). See further discussions at: http://www.mindat.org/mesg-7-206424.html

Additional material labeled "tirodite" from the International Talc Company mine, Talcville, New York, USA, was confirmed to be anthophyllite by XRD performed by John Attard on a sample submitted by John Duck in April, 2012. Accordingly, without confirmation, the identity of similar material may be either manganocummingtonite or anthophyllite. Visual identification or identification by fluorescent response is not possible.

Mineral List


5 entries listed. 4 valid minerals. 1 erroneous literature entry.

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Ghose,S. and Hexiong, Y (1989): Mn-Mg distribution in a C2/m manganoan cummingtonite: Crystal-chemical considerations. American Mineralogist: 74: 1091-1096. [with a discussion on the amphibole Segeler (1961)described as "tirodite"]

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