A portion of a single large grain of brown diopside showing prominent basal partings, which give the mineral a platy structure, here most evident toward the base of the specimen. The diopside is poikiloblastic and encloses numerous grains of nearly white hardystonite and black franklinite, plus (toward right side as photographed) grains of pale green willemite and pink tephroite. This specimen, catalog number FMM-5115, was donated to the Franklin Mineral Museum by Al Standfast, whose skills as a photographer (both of specimens and people) were much appreciated locally.
Identifier: DPS7a Locality: Franklin mine, Franklin Specimen size: 17.5 x 10 x 4 cm Photo credit: Earl R. Verbeek
