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Limestone
Limestone is sedimentary rock
Limestone is made out of chalk and marble
It is primarily composed of calcium carbonate (CaCO3)
Cement is made by heating limestone with powdered clay
Limestone is cut into blocks for building and construction
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- Notiz am Ohne Titel, erstellt von hareb1999 am 05/11/2014.
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- hareb1999 · Nov 2014
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- 19 Feb 2016
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