Video encyclopedia



How to Chalk Paint Furniture | Beginners Guide to Chalk Paint & Wax


Chalk Paint Basics With Annie Sloan


How to Chalk Paint Furniture | With Chalk Paint and Wax + BEST Tips and Tricks


A beginner's guide to Chalk Paint® by Annie Sloan


10 Don'ts with Chalk Paint: Chalk Paint 101 Questions and Answers: Episode 9

Chalk is a soft, white, porous, sedimentary carbonate rock, a form of limestone composed of the mineral calcite. Calcite is an ionic salt called calcium carbonate or CaCO3. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite shells (coccoliths) shed from micro-organisms called coccolithophores. Flint (a type of chert) is very common as bands parallel to the bedding or as nodules embedded in chalk. It is probably derived from sponge spicules or other siliceous organisms as water is expelled upwards during compaction. Flint is often deposited around larger fossils such as Echinoidea which may be silicified (i.e. replaced molecule by molecule by flint).
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  • Mining 

  • Deposits 

  • Composition 

  • Uses