Depinisyon ng obsidian, Kahulugan ng obsidian

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Definition of obsidian

English to English

noun

acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces

source: WordNet 3.0

A kind of glass produced by volcanoes. It is usually of a black color, and opaque, except in thin splinters.

source: Webster 1913

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