Special Ochavo Black Granite - Negro Ochavo Especi

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