Black Eyes Granite
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Location: Black Eyes granite is quarried in Ukraine.
Description: Black Eyes granite is a medium-grained, black-blue anorthosite with occasional sparkling bue reflectors. 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 an anorthosite.
The veining and colour varies considerably and a small sample of Black Eyes granite may not be representative of the whole slab therefore 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, Black Eyes granite is frost free and polish constant.
Compression tensile strength: 1993 kg/cm2
Tensile strength after freeze-thaw cycles: 1590 kg/cm2
Unitary modulus of bending tensile strength: 111 kg/cm2
Water imbibition coefficient: 0.002250
Mass by unit of volume: 2623 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.
Anorthosite: A phaneritic, intrusive igneous rock characterized by a predominance of plagioclase feldspar (90-100%), and a minimal mafic component (0-10%). Pyroxene, ilmenite, magnetite, and olivine are the mafic minerals most commonly present.