Chalk Sticks
See also: Sidewalk chalkSticks of processed "chalk" are produced especially for use with blackboards in white and also in various colours. These are not actually made from chalk rock but from calcium sulfate in its dihydrate form, gypsum.
Read more about this topic: Blackboard
Famous quotes containing the words chalk and/or sticks:
“No matter how much faculty of idle seeing a man has, the step from knowing to doing is rarely taken. Tis a step out of the chalk circle of imbecility into fruitfulness.”
—Ralph Waldo Emerson (18031882)
“A fat stomach sticks out too far, Monsieur La Rue. It prevents you from looking down and seeing what is going on around you.”
—Norman Reilly Raine (18951971)
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