Capao Bonito Granite
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Synonyms: Capao Bonito Red, Capao Red, Capo Bonito, Red Capao Bonito, Rosso Capao Bonito, Vermelho Capao Bonito
Location: Capao Bonito granite is quarried at quarry RN 000196, Paranapitanga, Fazenda Somibras, Capao Bonito, Sao Paolo. Brazil
Description: Capao Bonito granite is a fine to medium-grained, red granite of the Precambrian period. This stone internationally may be nominated as a granite and in the area of application of the European Standard this stone must be nominated as a granite. Ideal for both interior and exterior use, Capao Bonito granite is frost free and polish constant.
Mineral Composition: Perthitic Microcline: 45%, Quartz: 35%, Oligoclase: 15%, Biotite: 5%.
Compression tensile strength: 2223 kg/cm2
Tensile strength after freeze-thaw cycles: 1795 kg/cm2
Unitary modulus of bending tensile strength: 161 kg/cm2
Heat expansion coefficient: 0.0081 mm/m°C
Water imbibition coefficient: 0.20%
Impact strength: 52 cm
Mass by unit of volume: 2601 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.