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Synonyms: Butterfly Green, Granite Butterfly Green, Granito Verde Butterfly, Green Butterfly, Verde Pavao
Origin: Brazil, quarry RN 000165, Corrego do Jao, Vila Pavao, Espirito Santo
Technical and physical characteristics
Bulk density 12.766: 2,670 kg/dm³
Bending strength 12.763: 9,13 N/mm²
Compression breaking load 12.767: 101,20 N/mm²
Abrasion resistance 12.042 (Amsler): 0,41 mm
Water absorption 12.766: 0,15%.
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 monzonite.
A coarse to very coarse-grained, dark grey-green quartz monzonite.
Monzonite: An intermediate igneous intrusive rock composed of approximately equal amounts of sodic to intermediate plagioclase and orthoclase feldspars with minor amounts of hornblende, biotite and other minerals. Quartz a minor constituent or is absent; with greater than 10% quartz the rock is termed a quartz monzonite.
Local Geology:
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