Micro-Raman spectroscopy of natural members along CuSbS.sub.2./sub.-CuSbSe.sub.2./sub. join

0498203 - FZÚ 2019 RIV GB eng J - Journal Article
Sejkora, J. - Buixaderas, Elena - Škácha, P. - Plášil, Jakub
Micro-Raman spectroscopy of natural members along CuSbS₂-CuSbSe₂ join.
Journal of Raman Spectroscopy. Roč. 49, č. 8 (2018), s. 1364-1372. ISSN 0377-0486. E-ISSN 1097-4555
R&D Projects: GA MŠMT(CZ) LO1603
Institutional support: RVO:68378271
Keywords : chalcostibite * pibramite * Raman * phonons * vibrations of Sb(Se) * pyramids
OECD category: Geology
Impact factor: 2.809, year: 2018

Micro‐Raman spectroscopy was used to investigate the natural orthorhombic members (space group Pnma) along the CuSbS2–CuSbSe2 join: chalcostibite Cu1.01Sb1.00S1.99 from Dúbrava (Slovak Republic). Se‐rich chalcostibite Cu1.00(Sb0.99As0.02)Σ1.01(S1.29Se0.70)Σ1.99 and the new mineral příbramite Cu0.99(Sb1.03As0.01)Σ1.04(Se1.82S0.15)Σ1.97 both from the Příbram uranium and base‐metal district (Czech Republic). Stretching and bending vibrations of the pyramidal SbS3 groups occur between 350 and 200 cm−1 vibrations of SbSe3 groups are shifted to the range 240–80 cm−1 due to the almost twice heavier mass of Se compared with S. The shift of the ν1 symmetric Sb‐(S,Se) vibration was observed, yielding 113 cm−1, and for the ν3 antisymmetric stretching Sb‐(S,Se), vibration was about 127 cm−1.
Permanent Link: http://hdl.handle.net/11104/0290602