Beola Ghiandonata Granite From Italy | Color Sample & Information | Eurasian
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Beola Ghiandonata Granite : Italy

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Beola Ghiandonata Granite Image

Beola Ghiandonata Granite

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Synonyms:

Location: Beola Ghiandonata granite is quarried near Domodossola, Val d'Ossola, Provincia di Verbano-Cusio-Ossola, Piemonte, Italy.

Description: Beola Ghiandonata granite is a Commercial name for a grey-white gneiss (paragneiss) with a dark grey/green pattern with large, dotted white “ghiande” (acorns). 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 considerably and a small sample of Beola Ghiandonata 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, Beola Ghiandonata granite is frost free and polish constant.

Mineral Composition: Quartz: 30%, Plagioclase: 19%, Orthoclase: 30%, Biotite/Chlorite: 15%, Muscovite: 4%, Apatite/Epidote/Zircon: 2%

Physical Characteristics:
Compression tensile strength: 1670 kg/cm2
Tensile strength after freeze-thaw cycles: 1630 kg/cm2
Unitary modulus of bending tensile strength: 110 kg/cm2
Heat expansion coefficient: 0.0050 mm/m°C
Water imbibition coefficient: 0.028000
Impact strength: 85 cm
Frictional wear: 0.98 mm
Mass by unit of volume: 2635 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.

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