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Webster 1913 Edition

Noun.

(Min.)

A kind of mineral of the spinel group.

Noun.

A mineral compound of iron, zinc and manganese, found in New Jersey, and named from Dr. Franklin.

franklinite ‎(countable and uncountable, plural franklinites)

(mineralogy) An isometric-hexoctahedral mineral containing iron, manganese, oxygen, and zinc.

mineral

franklinite Barthelmy, David (accessed 29 August 2016) Webmineral Mineralogy Database