Definition of Gilsonite in English:

Gilsonite

Syllabification: Gil·son·ite
Pronunciation: /ˈgilsəˌnīt
 
/

noun

trademark
  • A very pure, shiny black, brittle form of asphalt, used in making inks, paints, and varnishes.
    More example sentences
    • In the 1990s the state led the nation in beryllium and Gilsonite production.
    • A general guideline is that 3% binder replacement with Gilsonite will double the viscosity of a binder.

Origin

late 19th century: named after Samuel H. Gilson, 19th-century American mineralogist, + -ite1.

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