Xisto Negro de Foz Côa

Schist and Slate

Schistose laminated rock, fine-grained, dark grey coloured, with irregular and deformed schistose cleavage, with alternation between lighter fine-grained beds and darker pelitics beds.

Color

Grey

Region

Center

Origin

Guarda

Occurrence

Vila Nova de Foz Côa

Reservation Availability

Available

Other Commercial Names

Xisto Negro de Foz Côa – Nomenclature EN 12440, Ardósia de Foz Côa, Xisto Preto de Vila Nova de Foz Côa, Infercoa

Recommended Uses

Indoor and Outdoor

Countertops

Decorative pieces

Kerbs of Natural Stone for External Paving (NP EN 1343)

Modular tiles (NP EN 12057)

Paving Cubes and Kerbs (NP EN 1342)

Rough blocks (NP EN 1467)

Rough Slabs (NP EN 1468)

Shower Tray

Slabs (NP EN 1341)

Slabs for Cladding (NP EN 1469)

Slabs for Floors and Stairs (NP EN 12058)

LNEG’s ROP Catalogue

Uniaxial Compressive Strength

128 Mpa

Apparent Density

2760 kg/m3

Mechanical Compressive Strength after Freeze-Thaw Testing

115 Mpa

Bending Strength

60,9 Mpa

Water Absorption at Atmospheric Pressure

0,2 %

Open Porosity

0,4 %

Maximum Thermal Expansion Coefficient

8,4 X 10 -6 perº C

Abrasion Resistance (Capon)

0,3 mm

Impact Resistance: Minimum Drop Height

55 cm

Companies

Silaco Natural Stones, Lda.

Urqueira

Projects

Espaço Miguel Torga

Pedra Do Tempo

Espaço Miguel Torga

Pedra Do Tempo

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