HIC Porcelain Mortar and Pestle 2.5-inch
This 2.5" set does a big job at grinding up herbs, spices and pills.  The bottom of the bowl is granulated to hold the herbs, spices, pills, etc. while the pestle grinds to whatever texture you choose.  This style of grinding releases flavor best in seeds, herbs, spices and garlic.  Porcelain is easy to clean, dishwasher safe and won't absorb food odors or stain.