Orange-tan, very coarse-grained diopside showing pronounced, thinly spaced parting surfaces, in contact with granular franklinite ore at the base. Not visible in this daylight view is abundant secondary willemite as patchy films on the diopside parting surfaces, along with a trace of clinohedrite. Note, in upper right, the numerous franklinite grains included in the diopside. The current whereabouts of this specimen are unknown; when photographed it was part of the sales stock of the Sterling Hill Mining Museum.
Identifier: DPS12b Locality: Franklin mine, Franklin Specimen size: 13 x 9 x 8 cm Photo credit: Earl R. Verbeek
