Black - Granite
Quarry Location: Burguillos del Cerro y Fregenal de la Sierra, Badajoz, Extremadura
Water Absorption: 0.17 By weight %, 0.47 By volume %
Density: 2810 - 2990 kg/m³
Flexural Strength: 13.4 - 14.1 MPa
Compressive Strength: 88.50 - 100.7 MPa (some source :161.0 MPa)
Recommended Usage: Exterior - Interior wall and floor applications, coluntertops, mosaic, fountains, pool and wall capp
Finishing Surface: Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Tumbled
Additional Names: Negro Ochavo, Negro Valencia, Ochavo Especial, Black Ochavo, Negre Ochavo, Nero Ochavo Granite, Black Ochavo Special Granite Granite, Negro Ochavo Especial
MODULO DE HELADICIDAD 0,012 %
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Black granite of thin grain, extracted in the batholiths of Valencia del Ventoso and Burguillos del Cerro. Medium mining. All kinds of uses.
General Caracteristics:
- Origin: Burguillos del Cerro y Fregenal de la Sierra
- Province: Badajoz
- Colour: Dark Grey
Petrographic description:Quartz Diorite monzonita with biotite and amphibole
Grain size: Thin
Opened porosity ( %): 0,5
Apparent density ( Kg/m3): 2990
Resistance to the graze ( mm): 18
Resistance to the compression ( MPa): 161
Resistance to the concentrated load deflection (MPa): 14,1
Microhardness knoop ( Mpa): 1086
Resistance to shoc (cm): 52
Water absorption for capillarity (g/m” · s0,5): 0,252
Resistance to ice ( % variation flexion after cycles ): 0
Water Absorption under atmospheric pressure ( %): 0,1
Break charge (N): 2150