Author:
Qjure
Book:
Qjurious
Type:
Info
Chapter:
1-40_.__.__
Chalk
German: Kreide.
Clades: Carbonates.
Chemical:
Region: Western Europe, France, Dover cliffs England.
Color: white, grey.
Use: for quicklime, bricks, builder's putty; for lowering acidity in agriculture; for writing on blackboard.
Mineralogy
Chalk is a soft, friable, , porous, sedimentary limestone, carbonate rock. It is a form of limestone composed of the mineral calcite.