Pumice ( /ˈpʌmɪs/), called pumicite in its powdered or dust form, is a volcanic rock that consists of extremely vesicular rough-textured volcanic glass...

A pumice raft is a floating raft of pumice created by some eruptions of submarine volcanoes or coastal subaerial volcanoes. Pumice rafts have unique characteristics...

paper, crushed apricot kernel or almond shells, sugar or salt crystals, pumice, and abrasive materials such as sponges, loofahs, brushes, and fingernails...

The large volume of low density pumice produced by the eruption accumulated as a large area of floating pumice, a pumice raft, that was originally covering...

Pumice Desert is a dry meadow in Crater Lake National Park. It covers 3,055 acres (4.8 sq mi; 12.4 km2) and is located along the North Entrance Park Road...

Canada. It consists of pumice from an explosive eruption that fell over an area about 40 square kilometres (15 square miles). The pumice is of comenditic trachyte...

Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone...

present in this data set. The Velocity may have observed pumice sea rafts (masses of floating pumice ejected from an underwater volcano) traversing the Sandy...

and gases to a height of 33 km (21 mi), ejecting molten rock, pulverized pumice and hot ash at 1.5 million tons per second, ultimately releasing 100,000...

very poorly sorted mixture of volcanic ash (or tuff when lithified) and pumice lapilli, commonly with scattered lithic fragments. The ash is composed of...

one large explosive eruption that may have generated a pumice raft. Parts of the "Loisels Pumice" in New Zealand are suspected to have originated in this...

important mineral resource. Italy is one of the world's leading producers of pumice, pozzolana, and feldspar. Another notable resource is marble, especially...

hour. A half-mile paved trail provides views of the lava dome, crater, pumice plain, and landslide deposit, with access to hiking trails in the restricted...

atmosphere. The key characteristics are the ejection of a large amount of pumice and very powerful continuous gas-driven eruptions. Short eruptions can end...

species of flowering plant in the family Asteraceae known by the common name pumice alpinegold. It is native to eastern and southern California, where various...

cells are rubbed off the bottom of the feet using a rough stone (often a pumice stone). Skincare is often provided up to the knee, including granular exfoliation...

18 hours, Vesuvius had covered the city of Pompeii in molten lava, ash, pumice, volcanic blocks, and toxic gases. Much of the town was preserved and organic...

washing the jeans with pumice in a rotating drum, or by using chemicals to create the appearance without the use of a rotating drum. Pumice stones act as sandpaper...

sediment loadings into the bay. In 1823, John Oxley originally named it Pumice Stone River believing it was a river because it was very shallow. Its present...

Unlike typical soap bars, Lava contains ground pumice, which gave the soap its name. The soap and pumice combination is intended to scour tar, engine grease...

gases to a height of 33 km (21 mi), erupting molten rock and pulverized pumice at the rate of 6×105 cubic metres (7.8×105 cu yd) per second. More than...

nature preserve. In 1916, Johann Handl, a German "pumice collector", obtained a permit to mine pumice, against "strong community objections", apparently...

Botrychium pumicola, with the common name pumice moonwort, is a rare fern. The fern is endemic to the Modoc Plateau in northern California and Crater Lake...

present day because it can be shaped to an extremely sharp edge. Rhyolitic pumice finds use as an abrasive, in concrete, and as a soil amendment. Rhyolite...

calming down, some of the explosions were still very energetic, hurling pumice opposite the direction of the wind. A large crater about 3,000 feet (900...

valleys, and thin and fine over topographic highs. During Plinian eruptions, pumice and ash are formed when foaming silicic magma is fragmented in the volcanic...

thicker coats follow with small amounts of superfine pumice, a crushed volcanic glass. The pumice acts both as a fine abrasive and to fill the pores of...

the island is covered with pumice and obsidian. Pumice mining has become a large industry on Lipari, and the pale pumice from Lipari is shipped worldwide...

which keep the bog floating. Another type of natural floating island is the pumice raft, which is created by an explosive volcanic eruption, and can float...

may cool with large or small vesicles (bubble-shaped cavities) such as in pumice, scoria, or vesicular basalt. Other examples of extrusive rocks are rhyolite...