Well-formed, brown crystals of diopside 1-3 cm long with franklinite crystals of similar dimension, both in a matrix of coarse-grained, pale gray, brightly red-fluorescing calcite. Originally in the Ewald Gerstmann collection, this is specimen FMM-599 on display in the Franklin Mineral Museum.
Identifier: DPS8a Locality: Franklin mine, Franklin Specimen size: 13 x 11 x 5 cm Photo credit: Earl R. Verbeek
