Pierre De Villamonte Sandstone Slab, Spain Beige Sandstone

Physical characteristics as test methods for natural stone
Standards UNE-EN Average value
Water absorption at atmospheric pressure (UNE-EN 13755) (%) 5,1 +/- 0,1
Bulk density (UNE_EN 1936)(kg/m3) 2200 +/- 22
Actual density 2714 +/- 12
Open porosity (%) 17,3 +/- 0,7
Total porosity (%) 19,3 +/- 1,5
Resistance to pressure under concentrated load (UNE-EN 12372) (MPa) 8,0 +/- 1,0
Resistance to compression (UNE-EN 1926) (MPa) 46,3 +/- 4,0
Shear strength (UNE-EN 1341, Annex D)
Wet 93,2 +/- 0,6
Dry 108,0 +/- 0,5
Wear resistance (UNE-EN 1341, Annex C) (mm) 31,7 +/- 1,4
Coefficient of water absorption by capillarity (UNE_EN 1925) C (g/m2s0, 5) 31,2 +/- 2,7
TECHNICAL DESCRIPTION
It is a calcareous sandstone polymictic (as reflected in Folk UNE-EN 12679. Terminology).
Has a homogeneous structure to the mesoscale.
Texture:
Grains of quartz, feldspar, rock fragments (limestone and dolomite) and signs of fossils.
Dense skeleton.
Relationship skeleton / paste 70/3033
Grain size, mode: 0,12-0,25 mm.
Angular grains of quartz.
Matrix micrítica and argilomicácea.
Esparítico microcrystalline calcitic cement.
Porous rock with porosity interpartícula, intercristalina and circumgranular.
Mineralogical composition:
Main components:
Calcite: 60% (as a matrix, cement, composed of clasts and fossil fragments)
Quartz: 18% (monocrystalline quartz and chert or flint signs)
Dolomite. 14% as parent dolomitic rock fragments and some scattered glass idiomorfo.
Minority components:
Feldspar: 4%
Minerals argilomicáceos: 4%
Accessory Components: Oxides.
Tourmaline, iron oxides, Muscovite, zircon