Draw_with chalk app for iPhone and iPad
4.4 (
944 ratings )
Entertainment
Free
Current version: 1.0, last update: 4 years agoFirst release : 07 Jan 2020
App size: 105.18 Mb
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 CaC03.Chalk has greater resistance to weathering and slumping than the clays with which it is usually associated, thus forming tall, sleep cliffs where chalk ridges meet the sea.