English
franklinfurnaceite
From Franklin + furnace + -ite, after Franklin Furnace in New Jersey, USA.
Formed from Franklin + furnace + -ite
Frankish *Frankō ‘Frank’
Old French fraunc ‘free’
Anglo-Norman fraunclein ‘a landowner of free, but not noble birth’
Middle English frankelein ‘freeholder’
English Franklin
Proto-Indo-European *gʷʰer- ‘to be warm’
…
Latin fornus
Latin fornāx ‘a furnace, oven, kiln’
Old French fornais
Middle English forneys ‘a furnace’
English furnace
Today it means
noun A monoclinic-sphenoidal dark brown mineral containing aluminum, calcium, hydrogen, iron, manganese, oxygen, silicon, and zinc.
Language periods are conventional ranges, not dates for this word.
Etymograph / franklinfurnaceite