Final answer:
Pumice, calcium carbonate, kaolinite, quartz, soapstone, and talc are commonly used as abrasives. Dental polishing agents can also act as abrasives in toothpaste.
Step-by-step explanation:
Pumice, calcium carbonate (limestone, chalk, dolomite), kaolinite, quartz, soapstone or talc are often used as abrasives, i.e. polishing agents. Abrasives, like the dental polishing agents used in dentists' offices, also cause a small amount of enamel erosion which is termed 'polishing' action. Some brands contain powdered white mica, which acts as a mild abrasive, and also adds a cosmetically pleasing glittery shimmer to the paste.