Definition of Pumices. Meaning of Pumices. Synonyms of Pumices

Here you will find one or more explanations in English for the word Pumices. Also in the bottom left of the page several parts of wikipedia pages related to the word Pumices and, of course, Pumices synonyms and on the right images related to the word Pumices.

Definition of Pumices

Pumice
Pumice Pum"ice, n. [L. pumex, pumicis, prob. akin to spuma foam: cf. AS. pumic-st[=a]n. Cf. Pounce a powder, Spume.] (Min.) A very light porous volcanic scoria, usually of a gray color, the pores of which are capillary and parallel, giving it a fibrous structure. It is supposed to be produced by the disengagement of watery vapor without liquid or plastic lava. It is much used, esp. in the form of powder, for smoothing and polishing. Called also pumice stone.

Meaning of Pumices from wikipedia

- Pumice ( /ˈpʌmɪs/), called pumicite in its powdered or dust form, is a volcanic rock that consists of extremely vesicular rough-textured volcanic gl****...
- 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...
- component of volcanic pumices and ashes is a highly porous gl****. The easily alterable, or highly reactive, nature of these ashes and pumices limits their occurrence...
- the upper dome region consists of alternating layers of light tuff and pumice, giving the concrete a density of 1,350 kilograms per cubic metre (84 lb/cu ft)...
- sizes. Some pumices have pink colours, indicating that they were exposed to air while hot. Mafic blebs have been extracted from the pumices. Healy volcano...
- 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...
- removed. The molten fuel hit the water and cooled into a light-brown ceramic pumice, whose low density allowed it to float on the water's surface. Unaware of...
- The large volume of low density pumice produced by the eruption ac****ulated as a large area of floating pumice, a pumice raft, that was originally covering...
- 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...
- very poorly sorted mixture of volcanic ash (or tuff when lithified) and pumice lapilli, commonly with scattered lithic fragments. The ash is composed of...