Home Franklinite
IV - Oxides (Spinel Group)
Crystal habit of Franklinite

Name   Franklinite
Chemistry   ZnFe2O4
Hardness   6 - 6.5
Lustre   metallic
Colour   iron black
Streak   dark brown to red brown 
Density [g/cm3]   5.0 - 5.2
Crystal habit   isometric, crystals often rounded with [111], [110]
Cleavage, Fracture   [111] distinct, fracture conchoidal
other characteristics and occurrences   in the Zn-deposits of Franklin (New Jersey), typical paragenesis with willemite (Zn2[SiO4]) und zincite (ZnO)

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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