bitter(Noun) A liquid or powder, made from bitter herbs, used in mixed drinks or as a tonic. bitter(Noun) A type of beer heavily flavored with hops. bitter(Noun) A turn of a cable about the bitts. bitter(Adjective) Having an acrid taste (usually from a basic substance) The coffee was bitter.
The word chalk comes from the Latin word âcalxâ. We get chalk from limestone. Most of the chalk you find today was made almost 60 to 100 million years ago. It is chemically made of calcium carbonate.
Jupiterimages/Photos.com/Getty Images. Limestones are a class of sedimentary rocks composed of the same mineral, calcite, which is made from calcium carbonate, or CaCO3. Despite this similarity in composition, however, not all limestone rocks are the same. Chalk is actually a special form of limestone that exhibits some differences from other rocks in the same class.