Siliceous Pierre: sandstone

Other titles / varieties

Hard sandstone, Condroz psammite, Meuse sandstone, Famennian sandstone

Mining area

Valleys of Amblève, du Bocq, du Hoyoux, Ourthe and Samson, provinces of Liège and Namur

Mineralogical composition

Quartz 62 - 78%, mica and feldspar minority

Maximum dimensions of the raw elements

Length 2 m width 1-2 m thick 07-1, 5 m

Minimum thickness of application

Element horizontal 2 cm

Surface States

Cleaved, gross, sided, retouched, squared

Common applications

Exterior: rubble, market, wall covers, angle, Bay Tower, kerbstone, paved, Platinum, tile, flooring, border

Interior: decorating