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Franklinite: (Zn,Mn++,Fe++)(Fe+++,Mn+++)2O4 Rinmanite: (Zn,Mn)2Sb2Mg2Fe4O14(OH)2
Comments: B&W image (reflected light) of a polished section of rinmanite and franklinite (white) with associated silicates.
Location: Garpenberg Norra Zn-Pb mine, Hedemora, Dalarna, in south-central Sweden. (CanMin, v39:1675).
Scale: Scale Bar 0.2 mm.
© Canadian Mineralogist
Comments: Black, octahedral franklinite crystals to 1.4 cm across on white calcite.
Location: Franklin, Sussex County, New Jersey, USA.
Scale: 2.9 x 2 cm.
© John Veevaert
Franklinite: (Zn,Mn++,Fe++)(Fe+++,Mn+++)2O4 Esperite: PbCa3Zn4(SiO4)4 Hardystonite: Ca2ZnSi2O7
Comments: Pale brown porcelaneous esperite with pinkish gray hardystonite and black franklinite.
Location: Franklin, Sussex County, New Jersey.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species