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Obsidian

nounverified·updated May 18, 2026

acid or granitic glass formed by the rapid cooling of lava without crystallization

Classifications

Entity Type

Unknownauthoritativeglossary_import_default_pending_classifier
?unassignedlast reviewed

Sensitivity

unclassified

Information Class

unclassified

Variants

plural
Obsidians
possessive
Obsidian's
pluralpossessive
Obsidians'