Granitos del Val

Atención al cliente: +34 988 261 384

Block Gris Piñor


Gris morrazo, or gris Piñor, is a light grey, compact, medium-grained, irregularly fractured rock. It is classified as “biotite granite” and its reserves can be considered medium to large. Its average grain size ranges between 1.5 and 2.5 cm and it presents a low degree of alterations, allowing any type of surface finish without losing its polished finish or deteriorating over time. It can be used both outdoors and indoors.


We sell blocks for gang saws – with slabs larger than 240×120- and sized blocks -with slabs smaller than 240×120- in First and Second qualities.


Mugares, Toen (Spain)

Physical-mechanical characteristics

  • Water absorption: 0.2%

  • Bulk density: 2640 Kg/m3

  • Resistance to frost: 1.7%

  • Compressive strength 183 MPa

  • Bending strength 16.9 MPa

  • Abrasion resistance: 16.7 mm

  • Anchorage resistance: 2450 N