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Bureau of Mines / Minerals yearbook metals, minerals, and fuels 1972
(1972)
Wells, J. Robert
Talc, soapstone and pyrophyllite, pp. 1191-1199 ff.
Page 1191
![[page image]](http://images.library.wisc.edu/EcoNatRes/0021/0001/M/1199.gif)
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