A Comparison between X-Ray Diffraction and Petrography Techniques Used to Determine the Mineralogical Composition of Granite and Comparable Hard Rocks

Abstract:

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Petrography and X-ray diffraction techniques are used in this work to determine the mineralogical composition of a granite, a gabbro and a quartzite. The experimental difficulties and the results obtained by both methods are described and discussed. The semi-quantitative procedure of XRD analysis used in this work allows an estimate of the relative mineral phase composition of each type of rock. Petrography was found to be crucial in terms of textural analysis.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

1628-1632

DOI:

10.4028/www.scientific.net/MSF.514-516.1628

Citation:

P. M. Amaral et al., "A Comparison between X-Ray Diffraction and Petrography Techniques Used to Determine the Mineralogical Composition of Granite and Comparable Hard Rocks", Materials Science Forum, Vols. 514-516, pp. 1628-1632, 2006

Online since:

May 2006

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Price:

$35.00

[1] E.A.K. Middlemost: Magmas and Magmatic Rocks: An Introduction to Igneous Petrology (Longman Group limited, 1985).

[2] EN 12407: 2000: Natural Stone Test Methods - Petrographic description of natural stones.

[3] B.L. Davis and M.J. Walawander: American Mineralogy 67 (1982), p.1135.

[4] INETI Internal Standard Procedure: Identification of crystalline phases using X-ray diffraction, 02/LCM, INETI, Portugal, (2001).

[5] JADE 6. 0: Data Analysis Software for search-match of the data in the data-base from the International Centre for Diffraction Data®, (Materials Data Inc., 2002).

[6] P.M. Amaral: Mechanical Behaviour of Ornamental Stones, Doctor Engineering Thesis, (Technical University of Lisbon, 2004).

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