Crown Paints Exterior Colour Book

BUILDING STONES

Red Sandstone Devonian

Ironstones Jurassic

Glasgow University

Britain has produced such a wide range of red sandstones that it is difficult to single out just a few for mention. The range of hues is in fact quite extensive, passing frompale pinks to deep reds and red browns. Red sandstones have been extensively used for buildings in Strathclyde, Cumbria, Cheshire, Staffordshire, Nottinghamshire, Worcestershire, Herefordshire and Gloucestershire, Glamorgan and Somerset. Whilst colourfully decorative, they have shown to be widely varying in durability.

An ironstone is a sedimentary rock that has more than 50% iron-bearing minerals. The sedimentary ironstones may be hard and calcareous and contain quartz grains, pebbles and a wide variety of macrofossils. Ironstones are characterised by their strong yellow-brown or orange-brown colours when weathered. When quarried and in an unweathered state however, they may show more subdued grey and greenish grey colours, dependant on the oxidation state of the iron minerals. Fresh ironstone blocks are often “blue hearted” where the core of the block has been protected fromweathering and oxidation effects.

Old Red Sandstone at Auchmitie

Great Hall OakhamCastle

DeFacto CC BY-SA 4.0

Graeme Churchard (GOC53)

Ironstones

Carlisle Cathedral

poorer stones originally used, for example, Worcester and Carlisle Cathedrals. It should be noted that not all Triassic sandstones are necessarily red, e.g. yellow to buff Clashach (Moray) and white Grinshill (Shropshire).

John Mann (Own work) CC BY-SA 3.0

The resistant red sandstone used in Glasgow contrasts strongly with the

Iberis White

C3830E

B7600R

Iberis White

B9770J

B8550T

SD

SX

SD

SD

SD

SX

C8140U

Pea Green

Obsidian

Ilex Green

D0310U

Y7180H

SX | SD

SD

SD

SD

SX

SX

SD: Colour available in a range of Sadolinproducts. SX: Colour available in a range of Sandtex Tradeproducts. For technical reasons connectedwith colour reproduction andprintmanufacture the colours shownwill not exactly match thepaint colour anddonot represent a particular texture or finish. For further informationor for colour samples, please contact our Customer RelationsTeam on 03300240302.

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