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Product infos:

Kuru Grey

Product No.HB8630     Promulgator:   Send date: 2014-06-16 14:14  Visitor:
Synonyms: Karin Grey, Kuru, Kuru Gra, Kuru Grau, Kuru Gray, Kurun Harmaa, Tampere.
Location: Kuru Grey granite is quarried near Niemenkylae, Kuru, Tampere, Kapee, Finland.
Description: Kuru Grey granite is a Commercial name for a fine-grained, medium grey granite of the Precambrian period. This stone internationally may be nominated as a granite and in the area of application of the European Standard this stone must be nominated as a granite.Finnish Kuru Grey is a dark grey, fine-grained granite, which has excellent technical properties. It creates an atmosphere of harmony in both modern and classic surroundings. Kuru Grey is also very popular stone for monuments
A small sample of Kuru Grey 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, Kuru Grey granite is frost free and polish constant.
Mineral Composition: Orthoclase: 36%, Quartz: 35%, Plagioclase: 21%, Accessories: 8%
Technical and Physical Characteristics:
Compression tensile strength: 2080 kg/cm2
Tensile strength after freeze-thaw cycles: 1990 kg/cm2
Unitary modulus of bending tensile strength: 132 kg/cm2
Heat expansion coefficient: 0.0065 mm/m°C
Water imbibition coefficient: 0.004000
Mass by unit of volume: 2620 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..

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