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Microspectroscope

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Journal Article
Published: 01 April 1954
American Mineralogist (1954) 39 (3-4): 393–394.
...John W. Adams Abstract The microspectroscope, or spectroscopic ocular, has been known to mineralogists for many years, but because of its limited application it has never come into common use in the mineralogical laboratory. The value of the microspectroscope in mineral identification was pointed...
Image
Optical <span class="search-highlight">microspectroscopic</span> study of the isochronal in situ measurements bet...
Published: 01 March 2022
Figure 4. Optical microspectroscopic study of the isochronal in situ measurements between 300 and 500 °C of pink euclase in the B orientation. (Color online.)
Journal Article
Published: 01 October 2014
American Mineralogist (2014) 99 (10): 2068–2083.
... microstructural and microspectroscopic investigation of a mixed hydrogenetic-diagenetic nodule, which is representative of ferromanganese deposits on abyssal plains. The measurements were conducted by micro-X-ray diffraction and X-ray absorption spectroscopy (both XANES and EXAFS) on hydrogeneous and diagenetic...
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Journal Article
Published: 01 November 2009
European Journal of Mineralogy (2009) 21 (6): 1313–1323.
... numerically simulated with a 3-shell elastic model. Estimated values of residual pressures are inconsistent with the residual pressures estimated from the frequency shifts. Residual pressure slightly depends on P–T conditions at peak metamorphic stage. Laser Raman microspectroscopic analysis of quartz...
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Journal Article
Published: 01 August 2007
American Mineralogist (2007) 92 (8-9): 1303–1315.
... microspectroscopic analysis of quartz is a simple and effective method for (1) comparison of pressure conditions in metamorphic rocks formed under various pressure-temperature conditions, and (2) detection of a higher-pressure signature in metamorphic rocks extensively recrystallized during the subsequent exhumation...
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Journal Article
Published: 01 May 2007
American Mineralogist (2007) 92 (5-6): 713–721.
... , behaves almost isotropic. These two bands are assigned to the stretching vibrations of an asymmetric water molecule in the structural cages. The third broad absorption at 3320 cm −1 , is predominantly polarized for E || c and is assigned to additional OH groups in the channels. Detailed microspectroscopic...
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Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2004
DOI: 10.1180/EMU-notes.6
EISBN: 9780903056519
Journal Article
Published: 01 April 2003
Mineralogical Magazine (2003) 67 (2): 305–324.
... contaminants and investigate their provenance, heavy particles separated from stream, canal and estuarine sediments were analysed by electron microprobe and laser Raman microspectroscopic methods. Potential metal sources are mineralization in the catchment area and industrial or domestic pollution...
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Journal Article
Journal: Geology
Published: 01 November 1999
Geology (1999) 27 (11): 979–982.
... band (at atmospheric pressure, room temperature) is at 521 cm −1 . Laser Raman microspectroscopic analyses of coesite inclusions within garnet and zircon in ultrahigh-P metamorphic rocks from Kazakhstan, Indonesia, and China reveal consistent differences in the Raman spectra of (1) partially...
Journal Article
Published: 01 October 1999
American Mineralogist (1999) 84 (10): 1512–1520.
... viscosities did not drift during the run, indicating that water loss is negligible within the time scale of the experiments, as confirmed by IR-microspectroscopic analysis. GeoRef, Copyright 2004, American Geological Institute. 1999 American Geological Institute ...
Journal Article
Published: 01 April 1994
American Mineralogist (1994) 79 (3-4): 269–273.
...Kathleen J. Kingma; Russell J. Hemley Abstract Samples of microcrystalline silica have been examined with Raman spectroscopy to investigate the vibrational and structural characteristics of the component phases, including their spatial distribution. Using microspectroscopic techniques, we found...
Journal Article
Published: 01 April 1965
American Mineralogist (1965) 50 (3-4): 356–366.
... a distribution pattern that is influenced by structure, composition, and-optical Jirection. Bands of neodymium and praseodymium characterize cerium group minerals whereas bands of erbium and holmium commonly predominate in yttrium group minerals. Detection of the bands with a microspectroscope is invaluable...
Journal Article
Published: 01 September 1929
American Mineralogist (1929) 14 (9): 323–328.
...Edgar T. Wherry Abstract In the first instalment of this article 11 the minerals showing absorption spectra consisting of narrow bands were discussed. There remain to be considered those in which the bands are mostly broader, at least as seen with the microspectroscope; these wrill be grouped...
Journal Article
Published: 01 August 1929
American Mineralogist (1929) 14 (8): 299–308.
... which they may aid in solving. Several years ago I published 1 a comprehensive study of the absorption spectra of minerals, as seen with the microspectroscope. That paper has long been out of print, but every now and then requests for certain information along this line are received, so...
Journal Article
Published: 01 May 1924
American Mineralogist (1924) 9 (5): 101–108.
...Edward F. Holden Abstract The absorption of light by rose quartz is slight, as might be expected, because of the small amount of pigment present. Wherry, 1 using a microspectroscope, found no absorption for this mineral beyond a shortening of both ends of the visible spectrum. But using a strong...
Journal Article
Published: 01 August 1923
American Mineralogist (1923) 8 (8): 147–148.
... it was found to be isotropic and analysis proves it to be the zinc spinel, gahnite, notable as owing its beautiful blue color to cobalt which is present in definite amount. This analysis is interesting as confirming the work of Wherry who, by microspectroscopic examination, found that distinctly blue spinels...
Image
Petrographic thin section showing three crystals of raadeite (arrows) inclu...
Published: 01 March 2001
) with a straight interface which could not be ascribed to any rational plane; after electron-micro-probe and IR microspectroscopic work, this inclusion was drilled out and one crystal served for the optical measurements, the other for structure determination. Variations of birefringence in the surrounding
Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 49 (1): v–vi.
... a wide variety of applications of synchrotron X-ray microspectroscopy and microtomography in characterizing earth and environmental materials and processes. Finally, Chapter 9 (Myneni) presents a review of the principles and applications of soft X-ray microspectroscopic studies of natural organic...
Journal Article
Published: 01 January 2003
American Mineralogist (2003) 88 (1): 151–158.
... inclusion chemistry, including metal and silica solubilities. Laser Raman microspectroscopic analyses were carried out on inclusions in standard doubly-polished fluid inclusion wafers, approximately 200 μm thick. The instrument used was a Renishaw RM1000 Raman Spectrometer equipped with a CCD detector...
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Journal Article
Published: 01 December 2010
The Canadian Mineralogist (2010) 48 (6): 1409–1421.
... resorbed edges; 103–155 μm 460 Ma 0.9 1006.88 ± 0.02 2.73 ± 0.06 S9, metamorphic, reddish, not transparent, resorbed edges, fraction 103–155 μm 460 Ma 1.7 1004.20 ± 0.02 6.12 ± 0.02 The ATR–IR microspectroscopic measurements were performed at the IR beamline of the ANKA synchrotron...
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