Natural Onyx Mortar and Pestle Beautiful Round Marble Stone, Spice Today Machine Prince Crankshaft Grinding Price Automatic Leaf spice Natural Onyx Mortar and Pestle Beautiful Round Marble Stone, Spice Traditional Stone Spice Grinder on the Floor Stock Photo Image of Traditional Indian Spice Stone Grinding: Handcrafted Stone Process in. The simplest of tools; use the pressure of your palm to roll the ball and pulverise your spices. Tested and approved by our London kitchen. Carved from solid blocks of marble with a marble ball. Ideal when paired with our Stone Pestle and Mortar. Diameter: 18cm Height: 13cm