Verde Butterfly Granite
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Synonyms: Butterfly Green, Granite Butterfly Green, Granito Verde Butterfly, Green Butterfly, Verde Pavao
Location: Verde Butterfly granite is quarried at quarry RN 000165, Corrego do Jao, Vila Pavao, Espirito Santo, Brazil.
Description: Verde Butterfly granite is a coarse to very coarse-grained, dark grey-green quartz monzonite. 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 monzonite. Ideal for both interior and exterior use, Verde Butterfly granite is frost free and polish constant. There are several quarries of Verde Butterfly granite therefore for large projects and matching ensure all the raw material comes from the same quarry.
Mineral Composition: Perthitic Orthoclase: 50%, Oligoclase: 30%, Quartz: 12%, Orthopyroxene: 8%
Technical and Physical Characteristics:
Compression tensile strength: 2607 kg/cm2
Tensile strength after freeze-thaw cycles: 1973 kg/cm2
Unitary modulus of bending tensile strength: 134 kg/cm2
Water imbibition coefficient: 0.002300
Mass by unit of volume: 2751 kg/m3
Quartz Monzonite: Also called adamellite, intrusive igneous rock (solidified from a liquid state) that contains plagioclase feldspar, orthoclase feldspar, and quartz. It is abundant in the large batholiths (great masses of igneous rocks mostly deep below the surface) of the world’s mountain belts. Quartz monzonite differs from granodiorite by containing more alkali feldspar, usually more biotite and less hornblende, and oligoclase instead of andesine as the plagioclase mineral.