Revision of the occurrence of vanadium-rich fissure phosphates at Medkovy Kopce near Hlinsko, Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00139258" target="_blank" >RIV/00216224:14310/24:00139258 - isvavai.cz</a>

Výsledek na webu

<a href="http://scigeo.actamm.cz/en/revision-of-the-occurrence-of-vanadium-rich-fissure-phosphates-at-medkovy-kopce-near-hlinsko-czech-republic/" target="_blank" >http://scigeo.actamm.cz/en/revision-of-the-occurrence-of-vanadium-rich-fissure-phosphates-at-medkovy-kopce-near-hlinsko-czech-republic/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

čeština

Název v původním jazyce

Revision of the occurrence of vanadium-rich fissure phosphates at Medkovy Kopce near Hlinsko, Czech Republic

Popis výsledku v původním jazyce

During the research of secondary fissure phosphates of the Bohemian Massif, the historically mentioned localities in the vicinity of Hlinsko were newly investigated. This paper further characterizes the occurrences of fluorwavellite, variscite, cacoxenite and crandallite in fissures of Silurian graphite-rich metasedimentary rocks at the Medkovy Kopce northwest of Hlinsko (Pardubice Region, Czech Republic). Fluorwavellite forms orange-yellow, light yellow and blue-grey radially rayed aggregates 2–4 mm in size. Its empirical formula is (Al2.97V3+0.02K0.01)Σ3.00[(PO4)1.97(VO4)0.03]Σ2.00[F0.72(OH)2.27]Σ2.99·5H2O and refined unit-cell parameters are a 9.631(3), b 17.360(5), c 6.990(2) Å and V 1168.8(6) Å3. Three varieties of variscite have been observed: yellow-green translucent spherical aggregates up to 1 mm in size with empirical formula (Al1.00Fe0.01)Σ1.01[(PO4)0.99(VO4)0.01]1.00·2H2O; thin light green finely kidney-shaped crusts with empirical formula (Al0.95Fe0.03Mg0.01)Σ0.99(PO4)1.00·2H2O and chalky white solid spherical or powdery aggregates with empirical formula (Al1.05Fe0.02Mg0.01)Σ1.08(PO4)1.00·2H2O. Unit-cell parameters of all types of variscite are given in the text. Cacoxenite forms orange crusts up to 0.2 mm thick with empirical formula (Fe3+19.76Al3.81Mg0.33Ca0.07)Σ23.97O6.00[(PO4)16.76(VO4)0.24]Σ17.00(OH)8.53·75H2O and its structure was verified by Raman spectroscopy.

Název v anglickém jazyce

Revision of the occurrence of vanadium-rich fissure phosphates at Medkovy Kopce near Hlinsko, Czech Republic

Popis výsledku anglicky

During the research of secondary fissure phosphates of the Bohemian Massif, the historically mentioned localities in the vicinity of Hlinsko were newly investigated. This paper further characterizes the occurrences of fluorwavellite, variscite, cacoxenite and crandallite in fissures of Silurian graphite-rich metasedimentary rocks at the Medkovy Kopce northwest of Hlinsko (Pardubice Region, Czech Republic). Fluorwavellite forms orange-yellow, light yellow and blue-grey radially rayed aggregates 2–4 mm in size. Its empirical formula is (Al2.97V3+0.02K0.01)Σ3.00[(PO4)1.97(VO4)0.03]Σ2.00[F0.72(OH)2.27]Σ2.99·5H2O and refined unit-cell parameters are a 9.631(3), b 17.360(5), c 6.990(2) Å and V 1168.8(6) Å3. Three varieties of variscite have been observed: yellow-green translucent spherical aggregates up to 1 mm in size with empirical formula (Al1.00Fe0.01)Σ1.01[(PO4)0.99(VO4)0.01]1.00·2H2O; thin light green finely kidney-shaped crusts with empirical formula (Al0.95Fe0.03Mg0.01)Σ0.99(PO4)1.00·2H2O and chalky white solid spherical or powdery aggregates with empirical formula (Al1.05Fe0.02Mg0.01)Σ1.08(PO4)1.00·2H2O. Unit-cell parameters of all types of variscite are given in the text. Cacoxenite forms orange crusts up to 0.2 mm thick with empirical formula (Fe3+19.76Al3.81Mg0.33Ca0.07)Σ23.97O6.00[(PO4)16.76(VO4)0.24]Σ17.00(OH)8.53·75H2O and its structure was verified by Raman spectroscopy.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

10504 - Mineralogy

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Musei Moraviae, Scientiae Geologicae

ISSN

1211-8796

e-ISSN

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Svazek periodika

109

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

19

Strana od-do

145-163

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85212160023