How Is Chalk Made?

Answer

Chalk is commonly made from calcium carbonate. It can also be extracted from natural limestone composed of calcite. Chalk is used in the form of slender sticks as a teaching aid.
Q&A Related to "How Is Chalk Made"
Either calcium sulfate (from gypsum) or calcium carbonate (from limestone) is mixed with water and pigment, extruded into sticks and then baked.
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Chalk was first formed into sticks for the convenience of artists. The method was to grind
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To make chalk, limestone is quarried then crushed. The limestone is then wetmilled with water & moulded.
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3 Additional Answers
Chalk is made from calcium carbonate (CaCO3), a form of limestone. The base of pastel chalks is made of calcium sulphate (CaSO4), which is derived from gypsum (CaSO4-2H2O), an evaporite mineral formed by the deposition of ocean brine; it also occurs disseminated in limestone.
Chalk is a natural thing. It is ground into fine powder, water, clay and some coloring is added to the chalk and put into cylinders to dry so that we have the chalk into the sticks we have today. You can find more information here: http://www.enotes.com/how-products-encyclopedia/chalk
When you sit in a classroom, you may notice that a teacher will write with chalk. Chalk is made by crushing limestone. They then wash this limestone and mold it into chalk pieces.
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