Marina Blue Star Granite
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Location: Marina Blue Star granite is quarried in Norway.
Description: Marina Blue Star granite is 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 Blue Star 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 Blue Star granite is frost free and polish constant.
When processed for flooring some tiles should be rotated 90° to get an homogeneous surface.
Technical and Physical Characteristics:
Compression tensile strength: 2320 kg/cm2
Tensile strength after freeze-thaw cycles: 1979 kg/cm2
Unitary modulus of bending tensile strength: 203 kg/cm2
Impact strength: 46 cm
Mass by unit of volume: 2740 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.
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%.