Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load.
These mineral photos are copyrighted by their owners and may not be used without permission.
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
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