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Chalk is a sedimentary rock, specifically, a bioclastic limestone, made of the shells of very tiny marine organisms.

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14y ago
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10y ago

It is a white rock that crumbles when you use it. It can be easily broken and can be used in several ways

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11y ago

Sedimentary, Chalk is made up of dead things, but don't worry Crayola (R) and other popular brands make their chalk so processed, there is barley any "dead" plants and animals left.

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13y ago

chalk is a Calcium Carbohydrate(CaCo)

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Q: What kind of rock is chalk?
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