Definition of roweite in US English:

roweite

noun

Mineralogy
  • A very rare mineral formed by the hydrothermal alteration of manganese ore and occurring as pinkish-brown nodular masses.

Origin

1930s. From the name of George Rowe, Cornish-born U.S. mine official of Franklin, New Jersey, also a collector of local minerals and owner of one of very few specimens of roweite + -ite.

Pronunciation

roweite

/ˈrəʊʌɪt/