Giallo Imperial Granite From Brazil

Giallo Imperial Granite From Brazil

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Synonyms: Giallo Imperiale, Granite Giallo Imperial, Topazio Imperial

Origin: Brazil, Barra de Sao Francisco, Espirito Santo, Minas Gerais

Technical and physical characteristics
Bulk density: 2,670 kg/dm³
Bending strength: 10,79 N/mm²
Compression breaking load: 168,73 N/mm²
Water absorption: 0,25 weight-%

This stone internationally may be nominated as a granite however in the area of application of the European Standard (EN) this stone must be nominated as a gneiss.

A coarse-grained, purple-brown gneiss with red garnets.

Gneiss: A common and widely distributed type of rock formed by high-grade regional metamorphic processes from preexisting formations that were originally either igneous or sedimentary rocks. Gneissic rocks are coarsely 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.