natural stone, limestone, slate, granite, marble, basalt
Grade | Size | Surface | Price |
---|---|---|---|
A | 330*260*220 cm | Machine Cut | €/Tons |
natural stone, limestone, slate, granite, marble, basalt
Stone Information
Blanc Perlé, also known as Cinza Penalva, is a granite with a white to beige-grey colour and a homogeneous, medium to coarse-grained structure. This speckled granite consists of white feldspars, transparent (beige)grey quartz and black biotite minerals. Concentrations of black minerals (biotite) may occur. This granite is quarried in our own quarry in Portugal. Due to the very good technical characteristics of the stone, there is a very high demand for this granite for different purposes, either for the funeral market as well as for road construction projects.
Since the nineties, the quarry has been extracting Blanc Perlé natural stone from the granite basin in Esmolfe (Penalva do Castelo). There are only two companies still active there today, including SGS – which is owned by Brachot. The quarry has a valid mining license until 2050 and has more than 1 Million cubic metres of reserves. The annual production of the quarry is estimated around 4.000 m³.
Blanc Perlé is a magmatic plutonic rock, a granite with biotite.
Petrographic classification | Mean value + /- standard deviation | |
Apparent Density | EN 1936 | 2675 ± 14,2 kg/m3 |
Porosity | EN 1936 | 0,6 ± 0 vol% |
Water absorption | EN 13755 | 0,4 ± 0,0 massa% |
Flexural Strength | EN 12372 | 16 ± 1 MPa (E- = 14,7 MPa) |
Compressive Strength | EN 1926 | 193,5 ± 10 MPa (E- = 173 MPa) |
Wear resistance | EN 14157 | 17 ± 0,3 mm (E+ = 17,5 mm) |
Frost resistance | EN 12371 | Frost resistant (>168 cycles) |