It's a grinding and mixing tool. They're made from ceramic with an unglazed, rounded grinding end, and they're always used with a pestle--a little bowl made from ceramic that's unglazed inside. You...
A mortar and pestle is a tool used to crush, grind, and mix substances. The pestle is a heavy bat shaped stick whose end is used for pounding and grinding, and the mortar is a bowl, typically made of...
Simple limestone, crushed can be used with sand as a mortar, but it is VERY slow in reacting after it has (moisture) set. If you use limestone from which the water of crystallization has been baked...