New Bianco Romano Granite
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Synonyms: Bianca Romano, Bianco Roma, Bianco Romano Granite, Blanco Romano, Branco Romano
Location: New Bianco Romano granite is quarried in Brazil.
Description: New Bianco Romano granite is a medium to coarse-grained, yellowish-white gneiss with only a few big red garnets, 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 gneiss.
The veining and colour varies and a small sample of New Bianco Romano 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, New Bianco Romano granite is frost free and polish constant.
Mineral Composition: Microcline: 48%, Quartz: 30%, Oligoclase: 10%, Sillimanite: 5%, Garnet: 5%, Biotite: 2%
Compression tensile strength: 2051 kg/cm2
Tensile strength after freeze-thaw cycles: 1761 kg/cm2
Unitary modulus of bending tensile strength: 116 kg/cm2
Heat expansion coefficient: 0.0062 mm/m°C
Water imbibition coefficient: 0.003500
Mass by unit of volume: 2603 kg/m3
Gneiss: A common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Gneissic rocks are usually medium to coarse-foliated and largely recrystallized but do not carry large quantities of micas, chlorite or other platy minerals. Gneisses that are metamorphosed igneous rocks or their equivalent are termed granite gneisses, diorite gneisses, etc.