impsonite

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noun

A black carbonaceous substance, believed to be derived from a fluid bitumen which polymerized after filling a vein.

Scrabble 13
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Meanings

nounimpsonite (countable and uncountable, plural impsonites)

plural impsonites

  1. countableuncountableA black carbonaceous substance, believed to be derived from a fluid bitumen which polymerized after filling a vein.

Synonyms & antonyms

Also see
arkosite

Origin

From Impson + -ite, after a sample from the Impson Valley (later reclassified as grahamite); coined by George Homans Eldridge in 1901.

Full word history & related roots →
Cite this entry
APA

impsonite. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/impsonite

MLA

“impsonite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/impsonite. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “impsonite,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/impsonite.

Source: impsonite on Wiktionary, CC BY-SA 4.0.