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A Geoscience Digital Image Library

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TitleTalc-tremolite schist, St. Lawrence County, New York
DescriptionThis Precambrian schist is largely talc but also contains fibrous/bladed tremolite. The tremolite is altered to talc to varying degrees, and so is hard to pick out. The rock has ae greasy feel typical of talc. This sample is 9 cm across.
ChronostratigraphyPrecambrian
LocationUSA ▹ New York ▹ St. Lawrence
PhotographerNessa Eull. 2001-04-10.
CollectionWard’s Collection of Classic North American Rocks #82.
Key wordstalc, tremolite, schist, New York
Tech details756 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number333
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