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pumice 音标拼音: [p'ʌməs]

n. 轻石,浮石
vt. 用浮石磨光

轻石,浮石用浮石磨光

WordNet (r) 3.0 (2006) (WordNet)

pumice
n 1: a light glass formed on the surface of some lavas; used as
an abrasive [synonym: {pumice}, {pumice stone}]
v 1: rub with pumice, in order to clean or to smoothen

The Collaborative International Dictionary of English v.0.48 (gcide)

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}.
[1913 Webster]

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Pumice - Wikipedia
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 crystals It is typically light-colored
Pumice | Properties, Composition, Formation, Uses
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 carbonated drink and cools so rapidly that the resulting foam solidifies into a glass full of gas bubbles
Pumice | Volcanic Glass, Uses, Formation, Properties | Britannica
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 aggregate in precast masonry units, poured concrete, insulation and acoustic tile, and plaster
Pumice: Properties, Uses, Formation, and Care | Complete Guide
Discover the unique properties and diverse uses of pumice, the lightweight volcanic rock Learn about its formation, types, applications in construction, horticulture, personal care, and its metaphysical significance in this comprehensive guide
Pumice: Igneous Rock - Pictures, Definition More - Geology. com
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 an abrasive in a variety of industrial and consumer products
Pumice: Identification, Pictures, Info for Rockhounds
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 felsic or intermediate composition Pumice can be readily identified by its unique ability to float on water
What Is Pumice Used For? - Sciencing
From concrete blocks to exfoliating face scrubs, pumice is used for hundreds of unique applications Since pumice stone is made of solidified magma with large pores from trapped gases, it is a very lightweight material that is useful in a variety of construction and landscaping applications
Ultimate Guide to Pumice (The Floating Rock!) - Rock Seeker
Less dense than water, with a wide variety of both industrial and personal uses, it’s actually the result of violent volcanic eruptions Pumice itself has been used for thousands of years, and is still found in many products to this day But what is it? And how is it formed? Let’s scrape the depths and take a closer look at this offbeat stone
What is Pumice? - WorldAtlas
Pumice has an extremely wide distribution across the Earth’s surface, and in fact covers all of the continents It is frequently found in deposits discovered in the deepest portions of the ocean floor, and is a common occurrence in abyssal red clay
What is pumice and what can it be used for | Ferwer
Pumice is a lightweight and porous volcanic stone that is known for its unique properties and wide range of uses In this article, we take a detailed look at its origins and practical uses in cosmetics and household applications

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