Types of rock and their formation - ppt video online download
Discover the Beauty of Chalk: A Soft and Porous Sedimentary Rock
What's the difference between limestone, marble, and chalk.? - Quora
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Limestone | PPT
Chalk - Wikipedia
Chalk vs Limestone
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Chalk | Properties, Composition, Formation and Uses
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Mineral stone - calcite. A white or colorless mineral consisting of calcium carbonate. It is a major constituent of sedimentary rocks such as limestone, marble, chalk, can occur in crystalline form. Stock
Limestone is a type of sedimentary rock that is mainly made up of a substance called calcium carbonate. Calcium carbonate has the chemical formula, CaCO3. - ppt download
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Chalk - Wikipedia
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