franklinite

[ frangk-li-nahyt ]

noun

1. a mineral of the spinel group, an oxide of zinc, manganese, and iron, occurring in black octahedral crystals or in masses: formerly mined for zinc.

franklinite

/ ˈfræŋklɪˌnaɪt /

noun

1. a black mineral consisting of an oxide of iron, manganese, and zinc: a source of iron and zinc. Formula: (Fe,Mn,Zn) (Fe,Mn) 2 O 4

Word History and Origins

Origin of franklinite¹

1810–20, Americanism; named after Franklin, New Jersey, where it is found; -ite ¹

Word History and Origins

Origin of franklinite¹

C19: from Franklin , New Jersey, where it is found, + -ite ¹

Example Sentences

Franklinite, a zinc-manganese ore, is also a common source of supply.

From Project Gutenberg

In the New Jersey mines the zinc ores are the oxides zincite and willemite, and the zinc-iron oxide franklinite.

From Project Gutenberg

Commercially it is often made from franklinite in the following way.

From Project Gutenberg