Výsledky vyhledávání - "Martin Števko"

Thermodynamic and structural variations along the olivenite–libethenite solid solution

Autor: Juraj Majzlan, Alexandra Plumhoff, Martin Števko, Gwladys Steciuk, Jakub Plášil, Edgar Dachs, Artur Benisek

Publikováno v: European Journal of Mineralogy. 35:157-169

Many natural secondary arsenates contain a small fraction of phosphate. In this work, we investigated the olivenite–libethenite (Cu2(AsO4)(OH)–Cu2(PO4)(OH)) solid solution as a model system for the P–As substitution in secondary minerals. The s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e333d3b30bc6ff9cec3572e34dac912d
https://doi.org/10.5194/ejm-35-157-2023

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Phenakite and bertrandite: products of post-magmatic alteration of beryl in granitic pegmatites (Tatric Superunit, Western Carpathians, Slovakia)

Autor: Pavel Uher, Daniel Ozdín, Peter Bačík, Martin Števko, Martin Ondrejka, Olena Rybnikova, Štěpán Chládek, Jana Fridrichová, Jaroslav Pršek, Ľubica Puškelová

Publikováno v: Mineralogical Magazine. 86:715-729

The beryllium silicate minerals phenakite and bertrandite have been identified in granitic pegmatite dykes of the beryl-columbite subtype of Variscan age (~340−355 Ma), associated with S- to I-type granitic rocks of the Tatric Superunit, Western Ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2871ed7d09ed17a5ffb7b1a92593a71
https://doi.org/10.1180/mgm.2022.99

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Argentotetrahedrite-(Zn), Ag6(Cu4Zn2)Sb4S13, a new member of the tetrahedrite group

Autor: Jiří Sejkora, Cristian Biagioni, Martin Števko, Thomas Raber, Philippe Roth, Luboš Vrtiška

Publikováno v: Mineralogical Magazine. 86:319-330

Argentotetrahedrite-(Zn), Ag6(Cu4Zn2)Sb4S13, has been approved as a new mineral species by the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification (IMA-CNMNC) using samples from Kremnica, Slovak Republi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c2433488f27f70b616baa3fc9aa5e8a
https://doi.org/10.1180/mgm.2022.21

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Dachiardit-Ca, ferrierit-Mg a sprievodná zeolitová mineralizácia v dutinách chalcedónov na lokalitách Byšta, Brezina a Kuzmice (Slanské vrchy, Slovenská republika)

Autor: Pavol Myšľan, Martin Števko, Jiří Sejkora, Zdeněk Dolníček

Publikováno v: Bulletin Mineralogie Petrologie. 30:45-60

An interesting zeolite association has been identified at the localities Byšta, Brezina and Kuzmice, consisting of mordenite, clinoptilolite-Ca, dachiardite-Ca and ferrierite-Mg. Dachiardite-Ca (from Byšta and Brezina) and ferrierite-Mg (from Brezi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e68024c3fa8600fc0f75b882edebe1f6
https://doi.org/10.46861/bmp.30.045

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New data on sulphosalts from the hydrothermal siderite-type veins in the Spišsko-gemerské rudohorie Mts. (eastern Slovakia): 4. Tennantite-(Hg) from the Vyšný Klátov ore occurrence

Autor: Martin Števko, Jiří Sejkora, Tomáš Mikuš, Dušan Peterec

Publikováno v: Bulletin Mineralogie Petrologie. 30:243-249

A new occurrence of tennantite-(Hg) was recently confirmed at the Vyšný Klátov ore occurrence, Spišsko-gemerské rudohorie Mts., Košice-okolie Co., Košice Region, Slovakia. Tennantite-(Hg) occurs as lead-gray to black grains and aggregates up t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ae0b6a4716916403264edc4402b799e
https://doi.org/10.46861/bmp.30.243

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New data on sulphosalts from the hydrothermal siderite-type veins in the Spišsko-gemerské rudohorie Mts. (eastern Slovakia): 3. Tintinaite and bournonite from the Gašpar (Grexa) vein near Rožňava

Autor: Martin Števko, Jiří Sejkora, Zdeněk Dolníček

Publikováno v: Bulletin Mineralogie Petrologie. 30:11-18

A new occurrence of tintinaite was recently discovered at the Gašpar (Grexa) siderite-type hydrothermal vein with sulphides located in the Rožňavská dolina valley near Rožňava, Spišsko-gemerské rudohorie Mts., Rožňava Co., Košice Region, S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84fa1452e81e051352864254f65ab857
https://doi.org/10.46861/bmp.30.011

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Dve nové lokality pyromorfitu v Slovenskej republike: Chvojnica a Hnilčík

Autor: Martin Števko, Jiří Sejkora, František Kuraj, Matej Rybárik

Publikováno v: Bulletin Mineralogie Petrologie. 30:38-44

Two new localities of pyromophite were recently discovered at the Chvojnica base metals occurrence in the Strážovské vrchy Mts. (Tatric Unit), and at the supergene zone of the Piata siderite-type hydrothermal vein near Hnilčík (Spišsko-gemersk�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f076c1a18c0f4ab8c968835962c97ee9
https://doi.org/10.46861/bmp.30.038

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Supergénna mineralizácia na II. horizonte Východnej šachty hnedouhoľnej bane Handlová (Slovenská republika)

Autor: Pavol Myšľan, Martin Števko, Karsten Ivan

Publikováno v: Bulletin Mineralogie Petrologie. 30:214-223

At the II. horizon of the Eastern shaft of Handlová coal mine the occurrence of mineral assemblage of secondary minerals was identified. These accumulations consist of sulphate group minerals confirmed by PXRD and semiquantitative chemical analysis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::24845d7e821e8fd21beb990e7f21f08e
https://doi.org/10.46861/bmp.30.214

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