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, intercrista