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Chalcopyrite disease in sphalerite: pathology and epidemiology.

American Mineralogist

By:
and

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Abstract

This descriptive paper identifies three widely occurring textures designated as 'watermelon', 'dusting' and 'bimodal' that characterize the replacement of original Fe-bearing sphalerite by an aggregate of chalcopyrite and low-Fe sphalerite as an integral part of the mineralization process. Replacement probably predominates over alternative modes of origin for small chalcopyrite blebs in sphalerite from most vein and sea-floor massive sulphide deposits that formed in the 200-400oC temperature range and that have not been subsequently subjected to higher T. Sphalerite from the epithermal Ag-Pb-Zn deposit at Creede, Colorado, displays a rich variety of features ("bead chains') that are primary crystal dislocations decorated by exsolved chalcopyrite.-J.A.Z.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Chalcopyrite disease in sphalerite: pathology and epidemiology.
Series title:
American Mineralogist
Volume
72
Issue:
5-6
Year Published:
1987
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
American Mineralogist
First page:
451
Last page:
467
Number of Pages:
17