Cafe Bruno Granite
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Location: Cafe Bruno granite is quarried in Brazil.
Description: Cafe Bruno granite is a variegated, medium-grained, brown-purple granite with ochre yellow, brown, black and white coloring. This stone internationally may be nominated as a granite but in the area of application of the European Standard we are awaiting clarification.
The veining and colour varies considerably and a small sample of Cafe Bruno granite may not be representative of the whole slab therefore swatch samples must be approved for large projects to ensure that the blocks are all extracted from the same quarry face for matching purposes. Ideal for both interior and exterior use, Cafe Bruno granite is frost free and polish constant.
Compression tensile strength: 1570 kg/cm2
Tensile strength after freeze-thaw cycles: 1465 kg/cm2
Unitary modulus of bending tensile strength: 53 kg/cm2
Heat expansion coefficient: 0.0040 mm/m°C
Water imbibition coefficient: 0.001200
Impact strength: 58 cm
Frictional wear: 0.7 mm
Mass by unit of volume: 2540 kg/m3
Granite: Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granites are usually medium to coarse grained, occasionally with some individual crystals larger than the groundmass forming a rock known as porphyry. Granites can be pink to dark grey or even black, depending on their chemistry and mineralogy.