Gris Santamaría

Microgranite extracted from Burguillos's pluton. All kinds of uses. Good mining

Characteristic Generales:

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

  • Petrographic description: Granite two micas
  • Grain size: Thin
  • Opened porosity ( %): 0,5
  • Apparent density ( Kg/m3): 2610
  • Resistance to the graze( mm): 17,5
  • Resistance to the compression ( MPa): 180
  • Microhardness knoop ( Mpa): 2027
  • Water absorption for capillarity (g/m” · s0,5): 0,583
  • Resistance to the crystallization of salts (Mass variation): 0,01
  • Water Absorption under atmospheric pressure ( %): 0,2