Pumice (/ ˈ p ʌ m ɪ s /), called pumicite in its powdered or dust form, is a volcanic rock that consists of extremely vesicular rough-textured volcanic glass, which may or may not contain …

Feb 19, 2025 · Pumice, a very porous, frothlike volcanic glass that has long been used as an abrasive in cleaning, polishing, and scouring compounds. It is also employed as a lightweight …

Aug 16, 2023 · Pumice is a volcanic rock that consists of highly vesicular rough textural rock glass. It generally light colored. It is created when gas-saturated liquid magma erupts like a …

Pumice is a light-colored, extremely porous igneous rock that forms during explosive volcanic eruptions. It is used as aggregate in lightweight concrete, as landscaping aggregate, and as …

Jun 15, 2023 · Pumice is a very low-density, form-like, mostly light-colored glassy volcanic rock with a vesicular texture, not a mineral. This rough, porous rock forms from mostly silicic, high …

Pumice is an incredibly lightweight volcanic rock formed through the rapid cooling and depressurization of magma during explosive volcanic eruptions. Its porous, frothy structure is …

Mar 10, 2019 · Pumice forms when super-heated, pressurized molten rock violently erupts from a volcano. Gases dissolved in magma (mainly water and carbon dioxide) form bubbles when …

Pumice is an extrusive igneous rock composed of highly vesicular volcanic glass, formed from violent eruption, depressurization, and rapid cooling of lava. It is usually lightly colored with a …

Sep 14, 2024 · Pumice is a highly vesicular, frothy, or form-like volcanic rock with a glassy texture. Some specimens have an aphanitic texture but are rare. It has a rough surface, is …

Jul 28, 2017 · Pumice is a pyroclastic (meaning it is formed from volcanic matter), igneous rock. The chemical properties of Pumice vary between deposits, but it is primarily composed of …