Characterisation of the copper arsenate mineral strashimirite, Cu8(AsO4)4(OH)4 . 4H2O, by near infrared spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F10%3A%230001276" target="_blank" >RIV/00023272:_____/10:#0001276 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Characterisation of the copper arsenate mineral strashimirite, Cu8(AsO4)4(OH)4 . 4H2O, by near infrared spectroscopy
Original language description
Near infrared (NIR) spectra of the strashimirite minerals from two different origins have been investigated. The structure and spectral properties of a copper-bearing arsenate mineral are compared. Two prominent bands observed at 11,187 cm-1 and 8443 cm-1 (Czech) and 11327 cm-1 and 8732 cm-1 (Slovak) are assigned to B-2(1g)-> B-2(2g) and B-2(1g)->(2)A(1g) transitions of Cu2+ ion in strashimirite. Intense bands at 7247 cm-1 and 6800 cm-1 are attributed to the first overtone of the water and OH fundamentals observed in a complex spectral profile centred upon 3300 cm-1. The very broad NIR band at 5150 cm-1 is assigned to combination bands of water and OH vibrations. Bands in the 4800 cm-1 to 4000 cm-1 are assigned to (AsO4)3- combination bands.
Czech name
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Czech description
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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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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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