Rough Rubble Stones (Condroz Sandstone)

Designation:

Condroz sandstone, hard sandstone, Condroz psammite, Meuse sandstone, Famennian sandstone.

Origin:

Belgium, Provinces of Liège and Namur: the valleys of the Amblève, Bocq, Hoyoux, Ourthe and Samson.

Description:

Slightly micaceous clayey sandstone, fine-grained, of Upper Famennian stratigraphic age (Upper Devonian, Paleozoic).

Appearance:

Sandstone deposits occur in an extremely varied range, with brighter shades (yellow, green, red, brown-rust) or more muted ones (from green-grey to blue-grey, wine lees, ochre, beige). The stone develops a patina, turning rust-brown when it is rich in iron, and in blue-grey or greenish tones when it is rich in feldspars. While the visible face of the rubble stone will always be split (natural), some sides may have a sawn surface.

Shades may vary depending on how the deposit is quarried.

Applications:

Sandstones are ideally suited to producing all types of rubble stone, steps, wall copings, corner stones, mould heads, facing stones, for both exterior and interior use. Split on the surface, the rubble stone is then dressed to give it its final finish: rough, cut back, re-cut or squared. Naturally non-slip, sandstone is also recommended for ground surfacing: setts, platines, slabs, edging.

Tolerance applicable from the limits of the nominal dimension ranges (min. and max.): 1 cm