Ruivina Escuro

Marble

Ruivina Escuro

Marble

Dark-grey calcareous marble with a medium to fine granoblastic texture.

Other Names
Ruivina Escuro – Nomenclature EN 12440, Ruivina
Petrographic Classification
Marble
Occurrence
São Tiago de Rio de Moinhos, Borba – Estremoz
Origin
Évora
Common Uses
Exteriors and interiors.
Available Reserves
Available
Source
Moura, A. C., & Carvalho, C. (2007). Mármores e calcários ornamentais de Portugal. Gestão de Artes Gráficas SA, Amadora. - http://www.lneg.pt/download/7310/index.html

Properties

  • Compression breaking load
    91 Mpa
  • Compression breaking load after freezing test
    93 Mpa
  • Bending strength
    16,0 Mpa
  • Volumetric weigth
    2720 kg/m3
  • Water absorption at N.P. conditions
    0,1 %
  • Aparent porosity
    0,1 %
  • Thermal linear expansion coeficient
    5,4 X 10 -6 perº C
  • Abrasion test (Amsler-Laffon_Cappon)
    2,6 / 22,5 mm
  • Impact test: minimum fall height
    50 cm
  • Note: After 25 frost-defrost cycles the test pieces did not present any modifications in colour or structure.

Companies

Processing
Extraction