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

  • Compression breaking load
    39 Mpa
  • Compression breaking load after freezing test
    33 Mpa
  • Bending strength
    32,7 Mpa
  • Volumetric weigth
    2730 kg/m3
  • Water absorption at N.P. conditions
    1,2 %
  • Aparent porosity
    3,4 %
  • Thermal linear expansion coeficient
    7,8 X 10 -6 perº C
  • Abrasion test (Amsler-Laffon)
    7,6 mm
  • Impact test: minimum fall height
    90 cm

  • Note: After 25 frost-defrost cycles the test pieces did not present any modifications in colour or structure.

Companies

Processing
Extraction
  • Cupa Stone, Lda.
    Águeda
  • SOLICEL – Sociedade do Centro Industrial de Esteios de Lousa, Lda.
    Vila Nova de Foz Côa
  • Aurimarmore, Oficina Mecânica de Mármores e Cantarias, Lda.
    Palmela
  • Duarte Mármores e Granitos
    Sintra
  • Eurobrás, Mármores e Granitos, Lda.
    Sintra
  • Paulo Jorge dos Reis Fonseca
    Alcobaça
  • Zamármores – Sociedade de Mármores e Granitos, Lda.
    Seixal