MACROSCOPIC DESCRIPTION

  • Dark grey "ruivina type" marble, fine grained.

MICROSCOPIC FEATURES

  • Essential Minerals: Calcite. ~99%
  • Acessory Minerals: Quartz, Muscovite and opaque minerals.

RUIVINA

Ruivina

PHYSICO-MECHANICAL PROPERTIES

  • Compression breaking load 930 Kg/cm2
  • Compression breaking load after freezing test 952 Kg/cm2
  • Bending strength 270 Kg/cm2
  • Volumetric weight 2715 Kg/m3
  • Water absorption at N.P. conditions 0.05 %
  • Apparent porosity 0.14 %
  • Thermal linear expansion coefficient 5.4 10-6 per ºC
  • Abrasion test 2.6 mm
  • Impact test: minimum fall height 45-50 cm
  • > Retour

QUARRIES

  • Evora

PREVALLING APPLICATIONS

  • Exterior and interior user. Furnitures tops