a black or dark-colored volcanic glass, usually composed of rhyolite

listen to the pronunciation of a black or dark-colored volcanic glass, usually composed of rhyolite
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Definition of a black or dark-colored volcanic glass, usually composed of rhyolite in English English dictionary

Related Terms

A black or dark-colored volcanic glass, usually composed of rhyolite
obsidian
a black or dark-colored volcanic glass, usually composed of rhyolite

    Hyphenation

    a black or dark-colored vol-can-ic glass, u-su-al-ly com-posed of rhy-o-lite

    Pronunciation

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