Giallo San Francisco Real Granite
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Synonyms: Amarelo Sao Francisco Real, Giallo SF Real, Giallo SF Reale, Giallo San Francisco Real
Location: Giallo San Francisco Real granite is quarried near Barra de Sao Francisco, Espirito Santo, Brazil.
Description: Giallo San Francisco Real granite is a yellowish-grey gneiss. 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. Ideal for both interior and exterior use, Giallo San Francisco Real granite is frost free and polish constant.
Gneiss: A high grade metamorphic rock. This means that gneiss has been subjected to more heat and pressure than schist. Gneiss is coarser than schist and has distinct banding. This banding has alternating layers that are composed of different minerals. The minerals that compose gneiss are the same as granite. Feldspar is the most important mineral that makes up gneiss along with mica and quartz. Gneiss can be formed from a sedimentary rock such as sandstone or shale, or it can be formed from the metamorphism of the igneouse rock grantite. Gneiss can be used by man as paving and building stone.