This natural Pumice Powder from volcanic ash is extra fine, giving it very mild exfoliation properties. It is light tan in color but the color varies in soap and cosmetics. This pumice is ideal for gentle face washes and soaps to be used on sensitive skin.Why People Use This Product: To provide mild exfoliation properties and color variation in products. Popular Products That Use This Ingredient: Scrubs. Soap. Interesting Facts: Pumice is a volcanic ash which is formed when lava is permeated with gas bubbles during the solidification process. Because lava has similar properties and chemical make-up as glass, pumice is very abrasive but unlike glass, it is very soft. Pumice is the softest abrasive media in use today. All Natural.Physical Form: Tan powder Solubility: Insoluble in water or oil Country of Origin: United States