Return to granite samples page.
Synonyms: Najaran Red, Najran Rouge, Violetta, Violetta Nayoran, Violetta Saudi
Location: Violetta granite is quarried at 55 km W. Najran, near the border to Yemen, Saudi Arabia.
Description: Violetta granite is a medium to coarse-grained, brown-pink granite of the Precambrian period with red, violet and blue spots. 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 Violetta 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, Violetta granite is frost free and polish constant.
Technical and Physical Characteristics:
Compression tensile strength: 2083 kg/cm2
Tensile strength after freeze-thaw cycles: 1846 kg/cm2
Unitary modulus of bending tensile strength: 192 kg/cm2
Water imbibition coefficient: 0.002100
Mass by unit of volume: 2708 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.