Beola Argentata Gneiss, Gneiss slabs blocks, granite slabs blocks, Beola Grigia Classica, wall tiles, floor tiles
Grey - Gneiss
Also called Classic Gray Beola. Name according to UNI EN 12440: Beola Grigia dell'Ossola. Granitoid orthogneiss of uniform gray colour, with medium-fine grain (larger than Beola Ghiandonata), homogeneous; equigranular foliate texture and rare mineralogical lineation. The micas have a medium grain and are present in thin discontinuous layers, with regular millimeter spacing. Mineralogical composition: quartz, K-feldspar (microcline), plagioclase, biotite and muscovite in approximately equal proportions, rare chlorite and epidote.
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