bn:00080208n
Noun Concept
Categories: Volcanology, Glass in nature, Volcanic rocks
EN
volcanic glass  Maui Diamonds
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EN
Volcanic glass is the amorphous product of rapidly cooling magma. Wikipedia
A substance formed by rapid cooling of magma Wikipedia Disambiguation
Material Wikidata
A natural glass produced by the cooling of molten lava, or a liquid fraction of it, too rapidly to permit crystallization. Wiktionary
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