Crystal chemistry and OH defect concentrations in spodumene from different granitic pegmatites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F06%3A00003344" target="_blank" >RIV/61989592:15310/06:00003344 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/06:00017113
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Crystal chemistry and OH defect concentrations in spodumene from different granitic pegmatites
Original language description
Thirty spodumene samples of distinct paragenetic types (primary magmatic, secondary after petalite and hydrothermal) from variety of granitic pegmatites were characterized by electron microprobe, polarized FTIR spectroscopy and Mössbauer spectroscopy. The FTIR spectra of OH (weak sharp pleochroic bands at 3,425, 3,410, 3,395 cm1 and in the 3,500-3,470 spectral region) are strongly polarized with maximum absorption parallel to nc. The majority of OH dipoles are presumably generated by a partial replacement of O2 oxygen atoms with an orientation pointing above the Li vacancy site. The separation of the bands probably resulted from a replacement of the coordinating Al by Fe and Si by Al. Homogeneous spodumene mostly close to its ideal formula LiAlSi2O6 shows Fe (0.00-0.10 apfu as Fe3+; Fe3+ >> Fe2+) and Na (0.00-0.04 apfu) as the only minor cations and Fe3+Al1 substitution up to 10 mol% of the LiFe3+Si2O6 component. Hydrogen concentrations (from 0.1 up to <5 ppm H2O by weight
Czech name
Krystalová chemie a koncentrační defekty OH ve spodumenu z různých granitických pegmatitů
Czech description
Článek pojednává o krystalové chemii a koncentračních defektech OH ve spodumenu z různých granitických pegmatitů.
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
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics and Chemistry of Minerals
ISSN
0342-1791
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
32
Country of publishing house
DE - GERMANY
Number of pages
14
Pages from-to
733-746
UT code for WoS article
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EID of the result in the Scopus database
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