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Bureau of Mines / Minerals yearbook metals, minerals, and fuels 1969
Year 1968, Volume 1-2 (1969)
Hartwell, John W.
Talc, soapstone and pyrophyllite, pp. 1053-1058
Page 1053
![[page image]](http://images.library.wisc.edu/EcoNatRes/EFacs/0024/0001/M/1061.gif)
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