Potassian hastingsite and potassichastingsite from garnet - hedenbergite skarn at Vlastějovice, Czech Republic
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F07%3A00000335" target="_blank" >RIV/00025798:_____/07:00000335 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Potassian hastingsite and potassichastingsite from garnet - hedenbergite skarn at Vlastějovice, Czech Republic
Original language description
Potassichastingsite (3.05 wt. % K2O) occurs along as large phenocrysts in metasomatic rims of pegmatite dykes penetrating Ca-Fe skarn at Vlastějovice, in the Moldanubian Zone, Bohemian Massif, Czech Republic. The skarn is characterized by the high f (O2)assemblage of grossularite ? andradite garnets, Fe3+- enriched hedenbergite, magnetite, and epidote. Amphibole is characterized by Fe3+ > VIAl (Fe3+ 0.80 to 1.07 apfu, VIAl 0.30 to 0.38 apfu), high XFe (0.83 to 0.72) and low X-site vacancies (0.09 to 0.22). Due to high K content (up to 0.62 apfu) it corresponds to potassichastingsite or potassian hastingsite. The OH content ranges from 1.60 to 1.82 apfu, fluorine from 0.17 to 0.33 apfu, but chlorine only from 0.03 to 0.06 apfu. Thus this amphibole belongs to most K-rich chlorine-poor hastingsites reported: (K0.62Na0.28)0.87 (Ca1.95 Na0.05)2.00 (Fe2+2.79Mg0.92Mn0.03 Fe3+0.80Ti0.05 Al0.38)4.96 (Si5.98Al2.02)8.00 O22.05 (OH1.71F0.18Cl0.06)1.95.
Czech name
Draslíkem bohatý a draselný hastingsit z granát - hedenbergitového skarnu ve Vladtějovicích, Česká republika
Czech description
Draselný hastingsit s obsahem až 3.05 hm. % K2O se vyskytuje jako velké fenokrystaly v lemech pegmatitových žil, které pronikají Ca-Fe skarn ve Vlastějovicích (Moldanubikum).
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Neues Jahrbuch für Mineralogie. Abhandlungen
ISSN
0077-7757
e-ISSN
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Volume of the periodical
184
Issue of the periodical within the volume
2
Country of publishing house
DE - GERMANY
Number of pages
8
Pages from-to
161-168
UT code for WoS article
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EID of the result in the Scopus database
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