Publication details

Pseudomalachit a descloizit v supergenni mineralni asociaci z lokality Krucemburk (Česká republika)

Title in English Pseudomalachite and descloizite in supergene mineral assemblage from Krucemburk (Czech Republic)
Authors

TOMAN Jiří HRAZDIL Vladimír SEJKORA Jiří

Year of publication 2016
Type Article in Periodical
Magazine / Source Acta Mus. Moraviae, Sci. geol.
MU Faculty or unit

Faculty of Science

Citation
Field Geology and mineralogy
Keywords pseudomalachite; descloizite; supergene minerals; weathering zone; historical mining; Bohemicum
Description The locality Krucemburk is well known by its historical occurrence of secondary Cu-phosphate pseudomalachite. A new revision of supergene minerals confirmed pseudomalachite while other polymorph (reichenbachite, ludjibaite) were not identified. Sporadic grains of descloizite were found. Chemical composition and X-ray diffraction pattern of studied minerals are given. Malachite, the dominant copper mineral of the supergene zone forms thin coatings on phylites. Unspecified Cu-S minerals of the chalcocite-digenite group, minute grains of acanthite, relics of galenite, chalcopyrite and supergene baryte only locally occur.

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