PORTLAND GREY

The grey limestone from the USA, because of its linear pattern, lends a unique character to each room. The material is particularly suitable for large-area applications, in- and outdoors.
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PORTLAND GREY

The grey limestone from the USA, because of its linear pattern, lends a unique character to each room. The material is particularly suitable for large-area applications, in- and outdoors.
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  • description material type
    Limestone is a sedimentary rock of marine origin and consist almost entirely of the mineral calcite. Dolostone, feldspar, clay minerals, quartz or mica schist minerals are present in very small quantities. These mineral and organic admixtures let the actually white limestone appear in his numerous coloring. Therefore, the limestone can be reddish, greenish, yellow-brown, dark grey or black. The material is particularly suitable for applications, indoors and partially outdoors.
  • technical information*
    type of rock Limestone
    origin Usa
    color Beige, Grey
    characteristics Cloudy, Linear
    acid resistance no
    application field interiors and exteriors
    compressive strength (MPa) 109,6
    density (kg/mc) 2691
    flexural strength (MPa) 6,7
    frost resistance partly
    water absorption (%) 0,5
*The above data is indicative and without guarantee. Detailed test results on request.
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