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Publikováno v:
Geologica Carpathica. 72
Massive quartz-chakedony +/- opal nodules ("plasma" in gemology) represent a specific silica variety, which occurs in the laterite-like residues of pre-Miocene paleo-weathering of ultramafites in western Moravia (Moldanubian Zone, Bohemian Massit). T
Publikováno v:
Acta Musei Silesiae: Scientiae Naturales, Vol 65, Iss 1, Pp 88-96 (2016)
Linarite, PbCu2+(SO4)(OH)2, and associated minerals were studied at new locality near Kletné, where they occur in dump material of historic Ag-Pb mines exploited during the 16th century. Linarite forms thin blue coatings and tiny dark blue crystals
Autor:
Stanislav Houzar, Vladimír Hrazdil, Šárka Koníčková, Petr Dočkal, Jaroslav Šmerda, Jiří Toman
Publikováno v:
Geoscience Research Reports.