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arXiv · 1003.0760

Relationship between Colours of Ochre from Roussillon and Content of Iron-Bearing Minerals

S. M. Dubiel·J. Cieslak·J. Tarasiuk·J. Niziol
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Abstract

Nine samples of ochre originating from the Sentier des Ocres near Roussillon, France, were studied with Mossbauer spectroscopy and Spectro-photo-colorimetry. The former yielded a quantitative phase analysis of iron containing minerals (goethite, hematite and kaolin), and the latter enabled determination of the CIE-L*a*b* colorimetric coefficients. Based on the results obtained it is shown that both a* and b* coordinates are responsible for the colour of the investigated ochres.

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S. M. Dubiel, J. Cieslak, J. Tarasiuk, J. Niziol. 2010-03-03. Relationship between Colours of Ochre from Roussillon and Content of Iron-Bearing Minerals. https://arxiv.org/abs/1003.0760

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