Definition of mackinawite in English:

mackinawite

noun

Mineralogy
  • A bronze-coloured tetragonal sulphide of iron and usually nickel in non-stoichiometric proportions, occurring as grains and minute lamellae.

Origin

1960s. From Mackinaw, the name of a mine in Snohomish County, Washington State, U.S.A. + -ite.

Pronunciation

mackinawite

/ˈmakɪnɔːʌɪt/