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