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Branco Pardais

Branco Pardais

Origin: Portugal

Type: Marble

 

Macroscopic Description

Rock with granoblastic texture, medium grained

 

Petrographic Description

Whitish yellow and rosy white medium grained marble, with light brown or, sometimes, greyish or reddish veinings.

 

Physico-Mechanical Properties

 

  • Compression Breaking Load: 868 Kg/cm2
  • Compression Breaking Load after Freezing Test: 959 Kg/cm2
  • Bending Strength: 277 Kg/cm2
  • Volumetric Weight: 2709 Kg/m3
  • Water Absorption: 0,08%
  • Apparent Porosity: 0,23%
  • Thermal Linear Expansion Coefficient: 10,2 (10^6 per ºC)
  • Abrasion Test: 2,8 mm
  • Impact Test: 62,5 cm

 

Chemical Properties

 

  • Al2O3: 0,1%
  • CaO: 54,51%
  • Fe2O3: 0,11%
  • K2O: 0,1%
  • MgO: 0,44%
  • MnO: 0,01%
  • Na2O: 0,06%
  • P. R.: 43,13%
  • SiO2: 1,54%

 

Microscopical Properties

 

  • Calcite: 99%
  • Quartz: 1%