Difference between revisions of "Chalk"
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− | A [[sedimentary rock]] made form the [[shell|shells]] of dead sea creatures and containing [[Calcium Carbonate]]. | + | A [[sedimentary]] [[rock]] made form the [[shell|shells]] of dead sea creatures and containing [[Calcium Carbonate]]. |
Revision as of 11:06, 4 April 2019
A sedimentary rock made form the shells of dead sea creatures and containing Calcium Carbonate.