SO9391 : Calcined limestone

taken 5 years ago, near to Dudley, Great Britain

Calcined limestone
Calcined limestone
There are numerous lime kilns around the southern tip of Wren's Nest, where the local limestone would have been calcined in order to drive off carbon dioxide and turn the calcium carbonate mineral into calcium oxide. If there is any iron present in the rock, it will be oxidised to Fe(III), which causes a red colouration. Although I am not certain, this loose material could be the result of that process.
Geology of Wren's Nest, Dudley
See this Geograph article Link about the geological history and limestone mining at Wren's Nest.
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SO9391, 84 images   (more nearby )
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Date Taken
Sunday, 8 June, 2014   (more nearby)
Monday, 25 August, 2014
Geographical Context
Quarrying, Mining  Park and Public Gardens  Rocks, Scree, Cliffs 
Primary Subject of Photo
Subject Location
OSGB36: geotagged! SO 9377 9143 [10m precision]
WGS84: 52:31.2428N 2:5.5948W
Camera Location
OSGB36: geotagged! SO 9379 9142
View Direction
West-northwest (about 292 degrees)
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