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Rosa Aurora

Rosa Aurora

Origin: Portugal

Type: Marble

 

Macroscopic Description

Rock with granoblastic texture and slightly deformed as is clearly shown by the cleavage lines of the calcite grains

 

Petrographic Description

Whitish-yellow marble with white rosy brownish and, sometimes, greyish small veins. Medium grained.

 

Physico-Mechanical Properties

 

  • Compression Breaking Load: 872 Kg/cm2
  • Compression Breaking Load after Freezing Test: 950 Kg/cm2
  • Bending Strength: 179 Kg/cm2
  • Volumetric Weight: 2717 Kg/m3
  • Water Absorption: 0,06%
  • Apparent Porosity: 0,16%
  • Thermal Linear Expansion Coefficient: 7,3 (10^6 per ºC)
  • Abrasion Test: 3,7 mm
  • Impact Test: 52,5 cm

 

Chemical Properties

 

  • Al2O3: 0,56%
  • CaO: 54,37%
  • Fe2O3: 0,12%
  • K2O: 0,15%
  • MgO: 0,62%
  • Na2O: 0,05%
  • P. R.: 43,25%
  • SiO2: 0,89%

 

Microscopical Properties

 

  • Calcite: 99%
  • Others: 1%