Raman spectra of oriented and non-oriented Cu hydroxy-phosphate minerals: libethenite, cornetite, pseudomalachite, reichenbachite and ludjibaite.
Oriented cornetite [Cu3PO4(OH)3], libethenite [Cu2PO4(OH)] and pseudomalachite [Cu5(PO4)2(OH)4] and non-oriented reichenbachite [Cu5(PO4)2(OH)4] and ludjibaite [Cu5(PO4)2(OH)4] minerals from Ľubietová and Špania Dolina dump fields, Banská Bystrica, Slovakia were examined by polarized Raman spectroscopy. The examined minerals display the characteristic vibrational modes of PO4 and OH groups and further lattice modes. The PO4 stretching and bending vibrations of the investigated minerals occur between 1150 and 900 cm(-1) and between 700 and 350 cm(-1), respectively. On the other hand, the hydroxyl group stretching and bending modes appear above 3350 cm(-1) and between 900 and 700 cm(-1), respectively. The lattice vibrations occur below 350 cm(-1). The different bond distances of the PO4 groups readily explain the shift of the bands to higher or lower wavenumbers among the studied Cu hydroxy-phosphate minerals.
Geology Department, Faculty of Science, Suez University, Suez 43518, Egypt; Department of Environmental Management, Faculty of Natural Sciences, Matej Bel University, Tajovského 40, 97401 Banská Bystrica, Slovakia. Electronic address: sherifkhabrish@hotmail.com.
Sherif
S
Kharbish
Department of Environmental Management, Faculty of Natural Sciences, Matej Bel University, Tajovského 40, 97401 Banská Bystrica, Slovakia; Geological Institute, Slovak Academy of Sciences, Ďumbierska 1, 97411 Banská Bystrica, Slovakia.
Peter
P
Andráš
Geological Institute, Slovak Academy of Sciences, Ďumbierska 1, 97411 Banská Bystrica, Slovakia.
Jarmila
J
Luptáková
Geological Institute, Slovak Academy of Sciences, Ďumbierska 1, 97411 Banská Bystrica, Slovakia.
Stanislava
S
Milovská
D002412:Cations; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008903:Minerals / Q000737:chemistry*; D009991:Oscillometry; D010710:Phosphates / Q000737:chemistry*; D018154:Slovakia; D012984:Software; D013059:Spectrum Analysis, Raman; D014732:Vibration
D002412:Cations; D008903:Minerals; D010710:Phosphates; D003300:Copper
Cornetite; Libethenite; Ludjibaite; Pseudomalachite; Raman spectroscopy; Reichenbachite