scoria


scoria
scoriaceous /skawr'ee ay"sheuhs, skohr'-/, adj.
/skawr"ee euh, skohr"-/, n., pl. scoriae /skawr"ee ee', skohr"-/.
1. Metall. the refuse, dross, or slag left after melting or smelting metal; scum.
2. Geol. a cinderlike basic cellular lava.
[1350-1400; ME < L scoria < Gk skoría, deriv. of skôr dung]

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Heavy, dark, glassy igneous rock that contains many bubblelike cavities.

Foamlike scoria, in which the bubbles are very thin shells of solidified basaltic magma, occurs as a product of explosive eruptions (as on Hawaii) and as frothy crusts on some lavas. Other scoria, sometimes called volcanic cinder, resembles clinkers, or cinders from a coal furnace.

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rock
      heavy, dark-coloured, glassy, pyroclastic igneous rock that contains many vesicles (bubblelike cavities). Foamlike scoria, in which the bubbles are very thin shells of solidified basaltic magma, occurs as a product of explosive eruptions (as on Hawaii) and as frothy crusts on some pahoehoe (smooth- or billowy-surfaced) lavas. Other scoria, sometimes called volcanic cinder, resembles clinkers, or cinders from a coal furnace.

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Universalium. 2010.

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  • Scoria — is a textural term for macrovesicular volcanic rock. It is commonly, but not exclusively, basaltic or andesitic in composition. Scoria is light as a result of numerous macroscopic ellipsoidal vesicles, but most scoria has a specific gravity… …   Wikipedia

  • scoria — / skorja/ s.f. [dal lat. scoria, gr. skōría, der. di skō̂r escremento ]. 1. (metall.) [spesso al plur., ciò che resta dopo l estrazione o la lavorazione di un metallo e sim.: s. di lavorazione ] ▶◀ (ant.) capomorto, residuo, rifiuto, scarto.… …   Enciclopedia Italiana

  • Scoria — Sco ri*a, n.; pl. {Scori[ae]}. [L., fr. Gr. ?, fr. ? dung, ordure.] 1. The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross. [1913 Webster] 2. Cellular slaggy lava; volcanic cinders. [1913 Webster] …   The Collaborative International Dictionary of English

  • Scorĭa — (gr.), 1) Schlacke; 2) Hautschlacke, der durch die Hautausdünstung abgehende verbrauchte Thierstoff, dessen Zurückballung die sogenannten Scorischen (rheumatischen) Krankheiten erzeugt …   Pierer's Universal-Lexikon

  • scoria — [skôr′ē ə] n. pl. scoriae [skôr′ēē΄] [ME < L < Gr skōria, refuse, dross < skōr, dung: see SCATO ] 1. the slag or refuse left after metal has been smelted from ore 2. loose, cinderlike lava scoriaceous [skôr΄ēā′shəs] adj …   English World dictionary

  • scoria — ALASKA VOLCANO OBSERVATORY GLOSSARY A cinder like volcanic rock, usually dark brown, red brown, or black in color. GLOSSARY OF VOLCANIC TERMS Solidified fragments of quenched, highly vesicular (>60%) mafic magma or lava (Cashman et al., 2000,… …   Glossary of volcanic terms

  • scoria — scò·ria s.f. 1a. TS metall. spec. al pl., residuo solido di un processo di estrazione di un metallo da un minerale che lo contiene 1b. TS metall. spec. al pl., residuo di un processo di rifusione o di affinazione di un metallo o di una lega… …   Dizionario italiano

  • scoria — sco•ri•a [[t]ˈskɔr i ə, ˈskoʊr [/t]] n. pl. sco•ri•ae [[t]ˈskɔr iˌi, ˈskoʊr [/t]] 1) mel the refuse, dross, or slag left after melting or smelting metal 2) gel Geol. a cinderlike basic cellular lava • Etymology: 1350–1400; ME < L scōria <… …   From formal English to slang

  • scoria — noun (plural scoriae) Etymology: Middle English, from Latin, from Greek skōria, from skōr excrement more at scatology Date: 14th century 1. the refuse from melting of metals or reduction of ores ; slag 2. rough vesicular cindery lava •… …   New Collegiate Dictionary

  • scoria — noun /skɔːɹiə/ a) The slag or dross that remains after the smelting of metal from an ore b) A porous rock that is formed by solidified lava, and which can be found around a volcanos crater …   Wiktionary


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