Marrom Imperial Granite
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Synonyms: Bom Jardim, Bom Jardin, Brown Imperial, Granito Marrom Imperial, Granito Marron Imperial, Imperial Brown, Imperial Brown Granite, Imperial Marron, M. Imperial, Marron Imperial, Marron Imperiale, Nonjardin
Location: Marrom Imperial granite is quarried at quarry RN 000129, Zina Rural, Sitio do Navio, Bom Jardim, Pernambuco, Brazil.
Description: Marrom Imperial granite is a coarse-grained, purple-brown syenite of the Precambrian period. 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, Marrom Imperial granite is frost free and polish constant.
Mineral Composition: Orthoclase: 80%, Augite: 8%, Hornblende: 5%, Biotite: 2%, Accessories: 5%
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%.