Semi White - Gneiss
Quarry Location: Formazza, Premia, Provincia di Verbano-Cusio-Ossola, Piemonte
Water Absorption: 0.40 By weight %
Density: 2665 kg/m3
Flexural Strength: 13.0 MPa
Compressive Strength: 127.0 - 141.0 MPa
Recommended Usage: Exterior - Interior wall and floor applications, coluntertops, mosaic, fountains, pool and wall capping, stairs, window sills
Finishing Surface: Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Tumbled
Additional Names: Sarizzo Formazza Gneiss Scuro Gneiss Granite,Serizzo Formazza
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