Sodalite Blue Granite
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Synonyms: Africa Blu, Africa Blue, African Blue, Blue Sodalite, Namibia Blue Sodalit, Namibia Blue Sodalite, Namibia Blue Sodalith, Namibiablue, Sodalite Blue
Location: Sodalite Blue granite is quarried near Swartbooisdrif, Okahwa, Huila Plateau, Ovamboland, Namibia.
Description: Sodalite Blue granite is a blue foidolite of the Precambrian period, partly with some yellow cancrinite. 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 foidolite. Ideal for interior use with the polish constant only inside, Sodalite Blue granite can easily be damged by contact with acid and having a tendency to break, the random slabs are often strengthened with glass fibre-armed resin. Sodalite Blue granite is one of the most expensive stones, the veining and colour varies considerably and a small sample is not representative of the whole block or slabs.
Foidolite: A rare coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%. Crystals of alkali feldspar, plagioclase, biotite, amphibole, pyroxene and/or olivine may be present within the rock.