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Carrstone

Greywacke

£1.38 – £3.46 ex VAT

Marl (Red)

£1.38 – £2.62 ex VAT

£1.38 – £3.46 ex VAT

Carrstone is a sedimentary rock which has a distinct, rusty red colour. These particular specimens found in Wesctott, Surrey formed during the Cretaceous period, a friable rock, it is iron rich, obtaining its colour from leaching. Used commonly as a building stone, the samples we have available have various size options and come supplied in a card tray with a label.

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Carrstone is the name given to an iron oxide rich variation of sandstone (known as ferruginous). It is easily identifiable due to having a deep, rusty red colouration and a very weak,friable rock texture. The colour becomes present in this sedimentary rock by leaching processes, which occur in irregular veins and is commonly a dark orange brown. At one time it was used as a source of iron ore in Surrey (Abinger Hammer) and today may be seen on old buildings, where it was used as a facing stone. However, the weak properties of this rock mean that it cannot be used for much else. These samples are Cretaceous in age, making them between 145 to 66 million years old and were found in the Lower Greensand formations of Westcott, Surrey in the UK. Specimens are available in various sizes and come supplied in a card tray with an information label. Due to the fragile nature of this rock, care is recommended when storing and handling them.

Weight 120 g
Specimen Size

2" x 2", 3" x 2", 4" x 3"

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