Petit Granit – Pierre bleue de Belgique

Belgium

Seneffe, castel build by the architect Laurent-Benoît Dewez during 2d part of 18th c., in ‘Petit Granit’, often in large éléments and in high monolithic columns, with a very good conservation (photo F. Tourneur)

Year designation

2017

Lithology

Limestone; Crinoidal biomicritic limestone or crinoidal packstone to grainstone

Aesthetics

Grey to greyish blue, becomes shiny black when polished

Geological settings

Paleozoic – Carboniferous – Middle to late Tournaisian

Location

Wallonia, province of Hainaut and in the Condroz region

Seneffe, castel build by the architect Laurent-Benoît Dewez during 2d part of 18th c., in ‘Petit Granit’, often in large éléments and in high monolithic columns, with a very good conservation (photo F. Tourneur)

A classic stone in fine arts

The stone can be used in nearly every kind of applications in architecture, garden architecture, decoration and sculpture. It has been used in many monuments throughout Belgium since the Middle Age until present. Largely exported since at least 18th century, first in surrounding countries (France, western part of Germany, but mostly in Holland) then through the world (for examples in the cathedral of Funchal, Madeira, and in the original fittings of the Suez Canal). In Paris, floors of Notre-Dame cathedral and Panthéon used the material mixed with French limestones. Appreciated since a long time by many artists for sculpture, small to very large, and also very frequently used in funeral heritage in Belgium and neighbouring regions. An ancient quarry in Soignies is protected as heritage site with the old industrial buildings, now used for education and professional training. 15 quarries are still active at present.

Paris, Panthéon – the floors were replaced at beginning of 19th c. (architect Rondelet), with two limestones in contrast, a light French limestone and many éléments of dark ‘Petit Granit’ (coming from the former quarry of Ligny, close to Namur) (photo F. Tourneur)

Mons, Sainte-Waudru church – this large gothic building is constructed mainly with ‘Petit Granit’, exquisitely carved, also used for the floors, with only some parts of Tertiary sandstones – probably one of the best preserved gothic churches of Belgium (photo F. Tourneur)

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