Pumice is a lightweight, porous volcanic rock commonly used in laboratories for polishing, cleaning, and abrasive applications. It is composed mainly of silica and aluminum oxide, making it an effective yet gentle abrasive material. In laboratory settings, pumice is often ground into fine powder or granules and used for cleaning glassware, polishing metal surfaces, or preparing specimens for microscopic analysis.It helps smooth and refine prosthetic materials, dentures, and orthodontic appliances. Pumice is also used in research laboratories for controlled abrasion in material testing. Since it is chemically inert, it does not react with most substances, ensuring safe usage across various applications. They are available in different grades—from coarse to fine—pumice allows for precise control over surface finishing. Proper storage and handling help maintain its quality and effectiveness over time.