Gritstone
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Gritstone or grit is a hard, coarse-grained,
grindstones to sharpen blades. "Grit" is often applied to sandstones composed of angular sand grains. It may commonly contain small pebbles.[1]
"
Pennines (including the Peak District) of northern England.[2] These sediments were laid down in the late (upper) Paleozoic era, in the Carboniferous period, in deltaic conditions. The Millstone Grit Group is a formal stratigraphic
term for this sequence of rocks.
The gritstone edges of the Peak District are an important climbing area and the rock is much relished by English climbers, among whom it has almost cult status and is often referred to as "God's own rock".[3] The rough surface provides outstanding friction, enabling climbers to stand on or grip the subtlest of features in the rock.
References
- ISBN 0-922152-76-4.[page needed]
- ^ Peter, Libby. "Gritstone - Climber Magazine". Climber Magazine. Archived from the original on 2016-08-02. Retrieved 2019-12-15.
- ISBN 1-56044-858-X.
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