pitchstone

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Englisch - Türkisch
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Englisch - Englisch
a natural glass, that is rich in microscopic crystallites, formed by the rapid cooling of lava or magma
{n} a siliceous stone of a grayish black
a natural glass, that is rich in microscopic crystalites, formed by the rapid cooling of lava or magma
dark acid granitic glass
An igneous rock of semiglassy nature, having a luster like pitch
pitchstone
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