What Is Chalk Made of?

Answer

Chalk is a type of sedimentary rock composed of mineral calcite. It is a type of limestone and is commonly to write with on a blackboard. It is also commonly used for drawing by children or artists.
Reference:
Q&A Related to "What Is Chalk Made of?"
Chalk is composed almost entirely of a chemical called calcium carbonate,
http://www.chacha.com/question/what-is-chalk-made-...
Chalk is primarily made of calcium carbonate or magnesium carbonate. It's a form of limestone - a mineral calcite.
http://www.kgbanswers.com/what-is-chalk-made-of/81...
ur mum made chalk
http://wiki.answers.com/Q/Who_made_chalk
Chalk is a clastic sedimentary rock made of millions of bodies of dead, and very tiny, sea creatures. The little skeletons weld themselves together in a loose rock that we call chalk
http://answers.yahoo.com/question/index?qid=201002...
2 Additional Answers
Chalk is usually made of calcium carbonate or calcium sulfate. Before it can be used, though, it must be treated to cut down the dust it produces (and in some cases, give it a different color). You can find more information here: http://www.enotes.com/how-products-encyclopedia/chalk
Natural chalk is a soft, white, porous sedimentary rock, a form of limestone composed of the mineral calcite. Modern blackboard chalk is generally made from the mineral gypsum (calcium sulfate), usually in sticks of compressed powder.
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2015 Ask.com