1) Cellular lava 2) Cindery lava 3) Dross 4) Ore slag 5) Scum 6) Slag 7) Smelting refuse 8) Smelting slag 9) Volcanic rock 10) Volcanic rock ejecta
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1) Dross 2) Slag
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Scoria is a highly vesicular, dark colored volcanic rock that may or may not contain crystals (phenocrysts). It is typically dark in color (generally dark brown, black or purplish red), and basaltic or andesitic in composition. Scoria is relatively low in mass as a result of its numerous macroscopic ellipsoidal vesicles, but in contrast to pumice,...
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http://en.wikipedia.org/wiki/Scoria
A bomb-size (> 64 mm) pyroclast that is irregular in form and generally very vesicular. It is usually heavier, darker, and more crystalline than pumice.
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http://midju.tripod.com/glossary.html
dross or slag from metal-smelting; slag-like mass of lava
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http://phrontistery.info/s.html
• (n.) Cellular slaggy lava; volcanic cinders. • (n.) The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross.
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http://thinkexist.com/dictionary/meaning/scoria/
A bomb-size (> 64 mm) pyroclast that is irregular in form and generally very vesicular. It is usually heavier, darker, and more crystalline than pumice.
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http://volcano.oregonstate.edu/glossary/1
heavy, dark-coloured, glassy, pyroclastic igneous rock that contains many vesicles (bubblelike cavities). Foamlike scoria, in which the bubbles are ... [1 related articles]
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http://www.britannica.com/eb/a-z/s/48
Scoria exposed in the cross section of a cinder or scoria cone. Credit: J. Lowenstern / U.S. Geological Survey A vesicular (bubbly) glassy lava rock of basaltic to andesitic composition ejected from a vent during explosive eruption. The bubbly nature of scoria is due to the escape of volcanic g...
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http://www.daviddarling.info/encyclopedia/S/scoria.html
A bomb-size (> 64 mm) pyroclast that is irregular in form and generally very vesicular. It is usually heavier, darker, and more crystalline than pumice.
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http://www.encyclo.co.uk/local/21455
Congealed lava, usually of mafic composition, with a large number of vesicles formed by gases coming
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http://www.encyclo.co.uk/local/22392
Sco'ri·a noun ;
plural Scoriæ . [ Latin , from Greek ..., from ... dung, ordure.]
1. The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross.
2. Cellular slaggy lava; volcanic cinders.
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http://www.encyclo.co.uk/webster/S/35
An igneous rock containing abundant vesicles.
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http://www.evcforum.net/WebPages/Glossary_Geology.html
a bubbly and glassy lava rock high in iron content
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http://www.pbs.org/wgbh/nova/volcano/glossary.html
A scoria is a cavity in igneous rock, caused by an escape of gas or steam. When such a cavity contains a mineral it is known as a amygdule.
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Congealed lava, usually of mafic composition, with a large number of vesicles formed by gases coming out of solution.
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http://www.scientificpsychic.com/etc/geology-glossary.html
(Gk: skor=dung; skoria refuse) slag-like fragments of pyroclastic material that have been ejected from a volcano in liquid form. Piles of scoria can form cones or mounds (Rangitoto Island).
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http://www.seafriends.org.nz/books/glossary.htm
Irregular masses of lava resembling clinker or slag; may be cellular (vesicular) dark-colored and heavy.
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http://www.selectstone.com/architectural-resources/stone-glossary/
A frothy basaltic rock, full of small gas bubbles. Often a black or red colour.
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https://www.encyclo.co.uk/local/21337
Irregular masses of lava resembling clinker of slag; may be cellular (vesticular), dark-colored and heavy.
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https://www.encyclo.co.uk/local/22191
No exact match found.
