Ochavo Black Granite - Granito Negro Ochavo

Black granite of thin grain, extracted in the batholith of Burguillos. Medium mining. All kinds of uses.

General Caracteristics:

- Origin: Burguillos del Cerro
- Province: Badajoz
- Colour: Black

• Petrographic description: Hornblende diorite with biotite and pyroxene
• Grain size:Thin
• Opened porosity ( %): 0,4
• Apparent density ( Kg/m3): 2840
• Resistance to the graze ( mm): 19
• Resistance to the compression ( MPa): 154
• Resistance to the concentrated load deflection (MPa): 18,1
• Elastic Module ( MPa): 37010
• Microhardness knoop ( Mpa): 3750
• Resistance to shock (cm): 51
• Water absorption for capillarity (g/m” · s0,5): 0,368
• Resistance to ice ( % variation flexion after cycles ): 4
• Resistance to the crystallization of salts (Mass variation): 0,01
• Water Absorption under atmospheric pressure ( %): 0,1
• Break charge (N): 1850