Serizzo Formazza
Italy
(Formazza, Premia, Provincia di Verbano-Cusio-Ossola, Piemonte)
Petrographic definition: Ortogneiss
Mass of Unit Volume: 2665 Kg/m3
Water absorption: 0.40%
Simple Compression: tensile strength 141 MPa
Simple compression after freeze-thaw tensile strength: 127 MPa
Elastic modulus tangent: 47300 MPa
Secant modulus of elasticity: 32000 MPa
Indirect tensile strength through bending: 13.0 MPa
Relative Abrasion coefficient (referring to s. Fedelino Granite): 0.81
Impact resistance: minimum height of fall: 89 cm
Linear thermal expansion coefficient: 5 x 10-6.8 OC-1
Knoop microhardness: 5692 MPa
Source: Università di Pisa - Politecnico di Torino
CHEMICAL ANALYSIS
In chemical composition % weight of the ox of the elements
chemicals that make up the rock.
SiO2- 67,2
TiO2 - 0,4
Al2O3 -18,1
Fe2O3 -1,2
FeO -2
MgO -0.8
CaO -3.8
Na2O -3,5
K2O -3,0
Mineralogical composition % by volume of minerals components of the rock.
Quartz - 30
Plagioclase - 30
Ortoclasio - 25
Biotite - 10
Muscovite - 3
Accessories: Tourmaline,Zircon, Apatite - 2
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Italy
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