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Rem: Revista Escola de Minas

Print version ISSN 0370-4467On-line version ISSN 1807-0353

Abstract

SANJAD, Thais A. B. Caminha; ANGELICA, Rômulo Simões; OLIVEIRA, Mário Mendonça de  and  COSTA, Walmeire Alves de Melo. Caracterização mineralógica de azulejos de Salvador e Belém dos séculos XVI, XVII e XIX. Rem: Rev. Esc. Minas [online]. 2004, vol.57, n.4, pp.255-260. ISSN 0370-4467.  http://dx.doi.org/10.1590/S0370-44672004000400007.

The present article is a study about the mineralogical composition of ancient tiles from centuries XVI, XVII and XIX, found in Belém and Salvador, in order to interpret the possible raw material and burning temperature. Quartz was identified in all samples. Other crystalline phases found are mullite, cristobalite, calcite, anorthite, hematite, gehlenite, diopside and wollastonite. Based on the probable raw material and probable burning temperature it was possible to organize the samples into three groups: group 1 - kaolinite and quartz, T between 1200º and 1728º C; group 2 - kaolinite, calcite and/or dolomite and iron oxide or hydroxide, T between 900º e 1200ºC; group 3 - quartz, clay minerals (probably kaolinite), calcite and/or dolomite, iron oxide or hydroxide, and T between 1200º e 1565º C.

Keywords : Ancient tile; Belém; Salvador; mineralogy; burning temperature; raw material.

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