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Science 12 January 1968:
Vol. 159. no. 3811, p. 194
DOI: 10.1126/science.159.3811.194
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Articles

Pyrite Group: An Unusual Member: Cu0.60Ni0.14Co0.03Fe0.23S2

peter J. M. Ypma 1

1 Department of Geology, Columbia University, New York 10027

An investigation of villamaninite from the type locality indicates that former analyses were of aggregates rather than of individual minerals. A redefinition embraces a larger range of solid solution, the end-member of which has the highest content of copper so far attributed to a member of the pyrite family.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)