Nero Black Pearl Granite
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Synonyms: Emerald Black, Labrador Black
Location: Nero Black Pearl granite is quarried in the Larvik region, Vestfold, Norway.
Description: Nero Black Pearl granite is a blue-green syenite (larvikite) of the Permian period. It has a dark colour with only a few, iridescent feldspars. 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, Nero Black Pearl granite is frost free and polish constant.
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%.