Definition of mooreite in US English:

mooreite

noun

Mineralogy
  • A hydrated basic sulphate of magnesium, manganese, and zinc, (Mg,Mn,Zn)₁₅(SO₄)₂(OH)₂₆·8H₂O, crystallizing in the monoclinic system and occurring as colourless tabular crystals.

Origin

1920s. From the name of Gideon Moore, U.S. chemist + -ite.