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Cu2O
Cubic
Cuprite, a copper oxide mineral, was first reported from Franklin by Seymour (1868) and Palache (1935). Frondel (1972) and Cook (1973) reported occurrences at Franklin and Sterling Hill, but cuprite is a rare mineral locally. No physical or chemical data have been obtained. Cuprite occurs as veins, but occurs most commonly as thin films or druses of microscopic crystals and as thin films.
At Franklin, dark red cuprite occurs as small 0.2 mm crystals and films associated with copper and as films within altered micas. Some Franklin cuprite likely exists unrecognized on oxidized copper specimens. The variety chalcotrichite was reported by Cook (1973) to be associated with azurite and aurichalcite in a dolomite vein.
At Sterling Hill, cuprite was reported by Cook (1973) as a 2-12 mm vein, associated with cuproan adamite, chrysocolla, willemite, and franklinite.
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| Copyright © 1995 by Pete J. Dunn |
Website
by Herb Yeates
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Link
to homepage
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This
page created: January 11, 2001 |
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