Trachite Peperino Rosso
Italy
(Vitorchiano, Soriano nel Cimino, Provincia di Viterbo, Lazio )
Trachite Peperino Rosso is a grey-pink volcanic tuff ( quartzlatitic ignimbite ) of the Quaternary period ( other authorities say Tertiary ), an eruption product of the old Cimino volcano, a type of Peperino Vitorchiano.
Abrasion resistance according to EN 12371: 21 mm, frost resistant, polishing not possible.
Petrographic definition: ignimbrite quarzolatitica
Massa Unit Volume: 2225 Kg/m3
Water Absorption: 4.28%
Breaking Load Compression Simple: 44.2 MPa
Compression breaking load after freezing: 25.5 MPa
Elastic Modulus Tangent: 27,400 MPa
Tensile indirect through Flex: 5.2 MPa
Coefficient relative Abrasion (referred to Granite St. Fedelino): 0.25
Impact resistance: minimum fall height: 40cm
Linear thermal expansion coefficient of 4.3 x 10-5 0C-1
Knoop microhardness: 1933 MPa
Source: Politecnico di Torino
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