indian grinding stone names. mortar and pestle wikipedia. mortar and pestle are implements used since ancient times to prepare ingredients or substances by crushing and grinding them into a fine paste or powder in the kitchen laboratory and pharmacy the mortar m r t r is a bowl typically made of hard wood metal ceramic or hard stone,photos of american indian grinding stones,you are interested in photos of american indian grinding stones. (here are selected photos on this topic, but full relevance is not guaranteed.) if you find that some photos violates copyright or have unacceptable properties, please inform us about it. (photosinhouse16gmail.com) native american (navajo or anaszi) grinding stone source.