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Najran Brown Granite : Saudi Arabia

Please note that these are average samples only. Your monitor settings may affect appearance.

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Najran Brown Granite Image

Najran Brown Granite

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Synonyms: Beir Askar, Bis Askar, Bir Askar Brown, Falcon Brown, Ghadeer, Havana Braun, Najaran Brown, Najran Brown, Najren Brown, Najron Brown, Naranja Brown, Nayarin Brown, Tropical Brown

Location: Najran Brown granite is quarried at Bir Askar, 50 km W Najran, near the border to Yemen, Saudi Arabia.

Description: Najran Brown granite is a medium-grained, brown 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.

A small sample of Najran Brown 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, Najran Brown granite is frost free and polish constant.

Mineral Composition:

Technical and Physical Characteristics:
Compression tensile strength: 2326 kg/cm2
Tensile strength after freeze-thaw cycles: 2181 kg/cm2
Unitary modulus of bending tensile strength: 143 kg/cm2
Heat expansion coefficient: 0.0050 mm/mC
Water imbibition coefficient: 0.001300
Impact strength: 82 cm
Frictional wear: 0.70 mm
Mass by unit of volume: 2540 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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