The basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite : an infrared emission and Raman spectroscopic study

Wayde Neil Martens; Ray L. Frost; Peter A. Williams

The basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite : an infrared emission and Raman spectroscopic study

Wayde Neil Martens, Ray L. Frost, Peter A. Williams

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13 Citations (Scopus)

Abstract

The molecular structures of the trimorphous basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite have been studied using a combination of infrared emission spectroscopy and Raman spectroscopy. Infrared emission spectra have been obtained over the temperature range 100 to 1000 Ãƒ"šÃ‚Â°C. Infrared emission spectra of the three minerals are different, in line with differences in crystal structure and composition. IR emission spectra show that the minerals are completely dehydroxylated by 550 Ãƒ"šÃ‚Â°C. The thermal decomposition patterns for the three minerals are different and reflect their stability. Raman spectra are similar, particularly in the stretching region, but characteristic differences in the deformation regions are observed. Differences are also observed in the phosphate stretching and bending regions.

Original language	English
Number of pages	26
Journal	Neues jahrbuch fÃƒÆ’Ã‚Â¼r mineralogie. Monatshefte
Publication status	Published - 2003

Keywords

Ludjibaite
Pseudomalachite
Raman spectroscopy
copper
infrared spectroscopy
phosphate minerals

Cite this

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title = "The basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite : an infrared emission and Raman spectroscopic study",

abstract = "The molecular structures of the trimorphous basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite have been studied using a combination of infrared emission spectroscopy and Raman spectroscopy. Infrared emission spectra have been obtained over the temperature range 100 to 1000 {\~A}ƒ{"}{\v s}{\~A}‚{\^A}°C. Infrared emission spectra of the three minerals are different, in line with differences in crystal structure and composition. IR emission spectra show that the minerals are completely dehydroxylated by 550 {\~A}ƒ{"}{\v s}{\~A}‚{\^A}°C. The thermal decomposition patterns for the three minerals are different and reflect their stability. Raman spectra are similar, particularly in the stretching region, but characteristic differences in the deformation regions are observed. Differences are also observed in the phosphate stretching and bending regions.",

keywords = "Ludjibaite, Pseudomalachite, Raman spectroscopy, copper, infrared spectroscopy, phosphate minerals",

author = "Martens, {Wayde Neil} and Frost, {Ray L.} and Williams, {Peter A.}",

year = "2003",

language = "English",

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issn = "0028-3649",

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TY - JOUR

T1 - The basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite : an infrared emission and Raman spectroscopic study

AU - Martens, Wayde Neil

AU - Frost, Ray L.

AU - Williams, Peter A.

PY - 2003

Y1 - 2003

N2 - The molecular structures of the trimorphous basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite have been studied using a combination of infrared emission spectroscopy and Raman spectroscopy. Infrared emission spectra have been obtained over the temperature range 100 to 1000 Ãƒ"šÃ‚Â°C. Infrared emission spectra of the three minerals are different, in line with differences in crystal structure and composition. IR emission spectra show that the minerals are completely dehydroxylated by 550 Ãƒ"šÃ‚Â°C. The thermal decomposition patterns for the three minerals are different and reflect their stability. Raman spectra are similar, particularly in the stretching region, but characteristic differences in the deformation regions are observed. Differences are also observed in the phosphate stretching and bending regions.

AB - The molecular structures of the trimorphous basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite have been studied using a combination of infrared emission spectroscopy and Raman spectroscopy. Infrared emission spectra have been obtained over the temperature range 100 to 1000 Ãƒ"šÃ‚Â°C. Infrared emission spectra of the three minerals are different, in line with differences in crystal structure and composition. IR emission spectra show that the minerals are completely dehydroxylated by 550 Ãƒ"šÃ‚Â°C. The thermal decomposition patterns for the three minerals are different and reflect their stability. Raman spectra are similar, particularly in the stretching region, but characteristic differences in the deformation regions are observed. Differences are also observed in the phosphate stretching and bending regions.

KW - Ludjibaite

KW - Pseudomalachite

KW - Raman spectroscopy

KW - copper

KW - infrared spectroscopy

KW - phosphate minerals

UR - http://handle.uws.edu.au:8081/1959.7/9909

M3 - Article

SN - 0028-3649

JO - Neues jahrbuch fÃƒÆ’Ã‚Â¼r mineralogie. Monatshefte

JF - Neues jahrbuch fÃƒÆ’Ã‚Â¼r mineralogie. Monatshefte

ER -

The basic copper phosphate minerals pseudomalachite, ludjibaite and reichenbachite : an infrared emission and Raman spectroscopic study

Abstract

Keywords

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