SILICEOUS STONE

Sandstone

TECHNICAL INFORMATION SHEET
Other names/varieties
Hard sandstone, Condroz psammite, Meuse sandstone, Famennian sandstone.
Extraction area
Amblève, Bocq, Hoyoux, Ourthe and Samson valleys, Liège and Namur provinces.
Mineralogical components
Quartz 62–78%, micas and feldspars to a lesser extent.
Maximum dimensions of raw blocks
Length 2 m; Width 1–2 m; Thickness 0.7–1.5 m
Minimum application thickness
Horizontal elements 2 cm
Surface effects
Split, rough, rough-trimmed, retouched, squared.
Common outdoor applications
rubble stone, steps, wall copings, corner stones, window frames, decorative stone, setts, thin paving, paving, small mosaic tiles, curbs.
Common indoor applications
decoration.

Sandstone quarries

Trageco S.A.
Grès du bois d’Anthisnes (GBA) S.R.L.
Carrières de Grès d’Arbre S.A.
Carrière de la Hazotte S.R.L.
Carrière New Wal Pierre S.A.
Carrières de Rhisnes S.A.
Private: Les grès du Condroz S.R.L.