/imp"seuh nuyt'/, n.
a black variety of asphaltite with a jagged fracture.
[1900-05; named after Impson, valley in Oklahoma; see -ITE1]

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Universalium. 2010.

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  • Impsonite — is a black, carbonaceous substance, with a specific gravity of 1.10–1.25 and a carbon content of 50–85%. It is described as an asphaltic pyrobitumen.It is believed to be derived from a fluid bitumen which polymerized after filling a vein. [ [http …   Wikipedia

  • impsonite — imp·son·ite …   English syllables

  • impsonite — ˈim(p)səˌnīt noun ( s) Etymology: Impson valley, Oklahoma + English ite : a mineral consisting of an asphalt much like albertite but almost insoluble in turpentine …   Useful english dictionary

  • pyrobitumen — pyrobituminous, pyrobituminoid, adj. /puy roh bi tooh meuhn, tyooh , bich oo /, n. any of the dark, solid hydrocarbons including peat, coal, and bituminous shale. [1900 05; PYRO + BITUMEN] * * * ▪ chemistry       natural, solid hydrocarbon… …   Universalium

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