Lillianite homologues from Kutna Hora ore district, Czech Republic: a case of large-scale Sb for Bi substitution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22810%2F17%3A43913559" target="_blank" >RIV/60461373:22810/17:43913559 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3190/jgeosci.235" target="_blank" >http://dx.doi.org/10.3190/jgeosci.235</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3190/jgeosci.235" target="_blank" >10.3190/jgeosci.235</a>

Result language

angličtina

Original language name

Lillianite homologues from Kutna Hora ore district, Czech Republic: a case of large-scale Sb for Bi substitution

Original language description

Numerous complex Ag-Pb-Bi-Sb sulphosalt minerals belonging to the lillianite homologous series previously unknown in Czech Republic; including a new mineral species; have been identified in samples from hydrothermal vein mineralization of the Kutna Hora Ag-Pb-Zn ore district, central Bohemia, Czech Republic. Identified lillianite homologues include both Bi members (minerals of the lillianite branch) and Sb members (andorite branch) and show an extensive Sb for Bi substitution. Nine distinct compositional groups were identified among Bi members, corresponding to: N = 4 (gustavite, terry wallaceite, staroceskeite - recently approved IMA No. 2016-101), N = 5.5 (vikingite), N = 6 (treasurite); N = 7 (eskimoite and (Ag, Bi)-rich heyrovsky lie), N = 8 (erzwiesite) and schirmerite (Type 2). Single-crystal XRD measurement of Bi members with N = 4 revealed a new mineral, staroceskeite. Unlike gustavite and terry wallaceite, which are monoclinic, staroceskeite is orthorhombic with a= 4.2539(8), b = 13.3094(8), c= 19.625(1) angstrom, and the ideal formula is Ag0.70PB(,1.60)(Bi Sb-1.35(c1.35))(Sigma 2.70)S-6 corresponding to N-chem = 4, Bi/(Bi + Si)) = 0.50 and substitution percentage L% = 70. Among Sb members, minerals with N = 4 (andorite series) and N = 5.0-5.5 were found. Relations between substitution percentage, chemical N and Sb content have been observed. The description of the new occurrence of Bi sulphosalts, including Sb-rich varieties and a continuous transition from Bi-dominant to Sb-dominant phases with N = 4 provides new information on compositional limits in natural sulphosalts. Comparable range of the Bi3+ &lt;-&gt; Sb3+ substitution in lillianite homologues with N = 4 has not been observed before.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10504 - Mineralogy

Project

<a href="/en/project/GA15-18917S" target="_blank" >GA15-18917S: Anomalous Bi-Sb substitution in sulphosalts of Kutna Hora ore district as an indicator of genetic conditions of the hydrotermal mineralization origin</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of GEOsciences

ISSN

1802-6222

e-ISSN

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Volume of the periodical

62

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

21

Pages from-to

37-57

UT code for WoS article

000400030700003

EID of the result in the Scopus database

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