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Talcville, St. Lawrence Co., New York, USA

Latitude: 44°18'35"N
Longitude: 75°18'23"W

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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

Mineral list contains entries from the region specified including sub-localities

24 entries listed. 20 valid minerals.

Localities in this Region

USA

New York
- St. Lawrence Co.
  - Talcville

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References

Segeler, Kurt (1961), First US occurance of manganoan cummingtonite, tirodite, The American Mineralogist: vol. 46.

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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Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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