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Browsing by Subject "euchroite"

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  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Asocjacja wtórnych arsenianów złoża Ľubietová-Svätodušná i eksperymentalna symulacja warunków towarzyszących ich powstawaniu
    (Data obrony: 2012-07-24) Janicka, Urszula
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    The subject of the research was the association of secondary arsenates Ľubietová- Svätodušná copper deposit in the Slovak Republic. The aim of the thesis was solving the possible forming conditions for the arsenates association. Four secondary arsenates were found on the dump: chalcophyllite, euchroite, olivenite and pharmacosiderite. To reproduce their forming conditions, the synthesis of chalcofyllite and euchroite as well as stability diagram were made. Only synthesis of chalcophyllite was successful. The stability diagram based on literature data was constructed for euchroite and olivenite. From this diagram could be seen, that olivenite and euchroite could be form in any kind of environment, but in more acidic environment the forming concentration value is broader.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Secondary arsenates from the Ľubietová-Svätodušná copper deposit in Slovakia
    (Wydawnictwa AGH, 2024) Solecka, Urszula
    In the vicinity of Lubietová in the Banská Bystrica region in Slovakia, copper was mined in three deposits: Podlipa, Svätodušná, and Kolba. The study concerns the association of secondary arsenates of the Lubietová-Svätodušná copper deposit. The Lubietová-Svätodušná deposit contains a large number of secondary minerals, formed as a result of weathering in the hypergene zone. Among them, copper arsenates are the most important, due to the rare occurrence of some of them. Four secondary arsenates have been characterized: chalcophyllite, euchroite, olivenite and pharmacosiderite. The minerals were identified using X-ray diffraction (XRD), whereas observations under a scanning electron microscope (SEM) and chemical analysis (EDS) showed that some of them are heterogeneous, contain different substitutions, and show significant variability in the content of individual elements within single specimens.