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Related articles:
Marl
Talc
Flint
Cretaceous
Chert
Pastel
Kent
Calcium carbonate
Limestone
Escarpment
Isle of Wight
Sedimentary rock
Cliff
Key terms: chalk form used rock clay calcium mostly usually carbonate substance england composed commonly magnesium sedimentary blackboard chalk Search external links cited by footnotes on Wikipedia page Chalk: |
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