Pesquisa

Rosa Borba

Rosa Borba

Origin: Portugal

Type: Marble

 

Macroscopic Description

Rock with granoblastic paved-like texture

 

Petrographic Description

Rose and white yellow medium grained marble, with greyish veins.

 

Physico-Mechanical Properties

 

  • Compression Breaking Load: 887 Kg/cm2
  • Compression Breaking Load after Freezing Test: 948 Kg/cm2
  • Bending Strength: 159 Kg/cm2
  • Volumetric Weight: 2712 Kg/m3
  • Water Absorption: 0,07%
  • Apparent Porosity: 0,2%
  • Thermal Linear Expansion Coefficient: 9,8 (10^6 per ºC)
  • Abrasion Test: 2,1 mm
  • Impact Test: 50 cm

 

Chemical Properties

 

  • Al2O3: 0,3%
  • CaO: 54,96%
  • Fe2O3: 0,1%
  • K2O: 0,33%
  • MgO: 0,32%
  • MnO: 0,01%
  • Na2O: 0,05%
  • P. R.: 42,92%
  • SiO2: 1,01%

 

Microscopical Properties

 

  • Calcite: 99%
  • Quartz: 1%