Black - Granite
Quarry Location: Burguillos de Cerro, Badajoz
Water Absorption: 0.01 %
Density: 2790 - 2930 Kg/m3
Flexural Strength: 13.2 - 17.5 MPa
Compressive Strength: 126.9 - 160.0 MPa
Recommended Usage: Building stone, countertops, sinks, monuments, pool coping, sills, ornamental stone, interior, exteri
Finishing Surface: Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Tumbled
Additional Names: Nero Extremadura, Extremadura Black, Granito Negro Extremadura, Black Extremadura Granite, Negro Extremadura Granite, Negro Extremadura
Granite of thin grain and dark color, extracted in the pluton of Burguillos. Good mining and reserves. All kinds of uses.
General Caracteristics:
- Origin: Burguillos del Cerro
- Province: Badajoz
- Colour: Black
Petrographic description: Amphibole biotite quartz diorite
Grain size: Thin
Opened porosity ( %): 0,3
Apparent density ( Kg/m3): 2930
Resistance to the graze ( mm): 19,5
Resistance to the compression ( MPa): 160
Resistance to the concentrated load deflection (MPa): 17,5
Microhardness knoop ( Mpa): 2293
Resistance to shock (cm): 34
Water absorption for capillarity (g/m” · s0,5): 0,110
Resistance to ice ( % variation flexion after cycles ): 0
Resistance to the crystallization of salts (Mass variation): 0,09
Water Absorption under atmospheric pressure ( %): 0,1
Break charge (N): 2300
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Negro Extremadura Granite is features shades of dark grays and blacks with low variation in pattern. This durable granite is recommended for use indoors and outdoors for a variety of projects including flooring, walls, countertops and landscaping projects.