Marina Pearl Granite
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Synonyms: Labrador Marina, Labrador Marina Pearl, Marina Perla
Location: Marina Pearl granite is quarried near Staalaker, Tjoelling, Tvedalen, Vestfold, Norway.
Description: Marina Pearl granite is a Commercial name for a coarse-grained, light blue iridescent syenite (larvikite) of the Permian 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.
A small sample of Marina Pearl granite is usually representative not having a wide variation in colour and veining however 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, Marina Pearl granite is frost free and polish constant.
Technical and Physical Characteristics:
Bulk density: 2,720 kg/dm≥
Bending strength: 12.26 - 13.73 N/mm≤
Compression breaking load: 107.91 - 186.39 N/mm≤
Water absorption: 0.30 weight-%
Larvikite: An igneous rock, a variety of the rock monzonite. It is noted for its interlocking crystals of feldspar. The feldspar is perthitic, and the alternating alkali feldspar and plagioclase layers give these crystals their characteristic silver blue sheen (or Schiller effect) on polished surfaces. Olivine can be present along with titanian augite, titanian magnetite, apatite, and sometimes quartz.
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%.