New Caledonia Granite
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Synonyms: Brown Itabira, Caledonia, Granite Graphite Brown, Graphite Brown, Marrom Graphite, Marron Graphite, New Caledonia Brown, Ocre Itabira
Location: New Caledonia granite is quarried at quarry RN 000176, Mata Fria, Zona Rural, Conceicao do Castelo, Espirito Santo, Brazil.
Description: New Caledonia granite is a coarse-grained, grey-brown syenite of Precambrian age. This stone internationally may be nominated as a granite but in the area of application of the European Standard this stone must be nominated as a syenite. Ideal for both interior and exterior use, New Caledonia granite is frost free and polish constant.
Mineral Composition: Microperthitic Microcline: 45%, Plagioclase (Oligoclase+Andesine): 20%, Hornblende: 14%, Biotite: 7%, Quartz: 5%, Mafite: 5%, Titanite: 4%
Technical and Physical Characteristics:
Compression tensile strength: 2083 kg/cm2
Tensile strength after freeze-thaw cycles: 2012 kg/cm2
Unitary modulus of bending tensile strength: 138 kg/cm2
Heat expansion coefficient: 0.0048 mm/m°C
Water imbibition coefficient: 0.001400
Impact strength: 81.40 cm
Frictional wear: 0.70 mm
Mass by unit of volume: 2545 kg/m3
Syenite: A coarse-grained intrusive igneous rock of the same general composition as granite but with the quartz either absent or present in relatively small amounts (<5%). The feldspar component of syenite is predominantly alkaline in character (usually orthoclase). Plagioclase feldspars may be present in small quantities, less than 10%.