Xisto de Mourão
Schist and Slate
Xisto de Mourão
Schist and Slate
Greyish or blueish-grey schist, rarely rosy, with greenish-grey and rosy spots and dark grey punctuations.
Other Names
Xisto de Mourão – Nomenclature EN 12440
Petrographic Classification
Schist
Occurrence
Mourão
Origin
Évora
Common Uses
Stonemasonry, cladding and different artistic and decorative works, preferably for interiors.
Available Reserves
Rare
Source
Catalog ROP of LNEG (http://rop.lneg.pt/rop/FormTipo.php)
Properties
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Compression breaking load39 Mpa
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Compression breaking load after freezing test33 Mpa
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Bending strength32,7 Mpa
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Volumetric weigth2730 kg/m3
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Water absorption at N.P. conditions1,2 %
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Aparent porosity3,4 %
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Thermal linear expansion coeficient7,8 X 10 -6 perº C
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Abrasion test (Amsler-Laffon)7,6 mm
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Impact test: minimum fall height90 cm
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Note: After 25 frost-defrost cycles the test pieces did not present any modifications in colour or structure.
Companies
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Cupa Stone, Lda.Águeda
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SOLICEL – Sociedade do Centro Industrial de Esteios de Lousa, Lda.Vila Nova de Foz Côa
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Aurimarmore, Oficina Mecânica de Mármores e Cantarias, Lda.Palmela
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Duarte Mármores e GranitosSintra
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Eurobrás, Mármores e Granitos, Lda.Sintra
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Paulo Jorge dos Reis FonsecaAlcobaça
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Zamármores – Sociedade de Mármores e Granitos, Lda.Seixal