About The Word Obsidian

Bay Area Crosswords

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Obsidian

Obsidian Meaning & Definition
Obsidian Definition And Meaning

What's The Definition Of Obsidian?

[n] acid or granitic glass; usually dark, but transparent in thin pieces

Synonyms | Synonyms for Obsidian:

Related Terms | Find terms related to Obsidian:

See Also | volcanic glass

Obsidian In Webster's Dictionary

\Ob*sid"i*an\, n. [L. Obsidianus lapis, so named, according to Pliny, after one Obsidius, who discovered it in Ethiopia: cf.F. obsidiane, obsidienne. The later editions of Pliny read Obsianus lapis, and Obsius, instead of Obsidianus lapis, and Obsidius.] (Min.) A kind of glass produced by volcanoes. It is usually of a black color, and opaque, except in thin splinters. Note: In a thin section it often exhibits a fluidal structure, marked by the arrangement of microlites in the lines of the flow of the molten mass.

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