Schistose sandstone

Also known as / varieties

Grès de la Warche, Pierre de Paliseul, Pierre de Mouzaive, Pierre de Ranhissart

Extraction zone

Ardennes, provinces of Liège and Luxemburg

Mineralogical composition

Combination of silica, clayey, ferruginous and aluminiferous minerals

Maximum dimensions of rough blocks

Length 0,5-3 m width 0,25-2 m thickness 0,4 m varies with type

Minimum thickness for application

Tile 3 cm - vertical element 5 cm

Surface treatment

Untreated, split, sometimes sawn

Common applications

Outside : flat rubble stone, corner, voussoir, lintel, floor tile, wall coping, sill, furniture

Inside : floor tile, interior decoration

Quarries :

Carriere de Mouzaive, Nelles Freres Ltd, Carriere de Ranhissart private Ltd, Theret Exploitations private Ltd, Carrière Les Rochettes