Dims: 2.0 x 1.2 x 0.8" (5.1 x 3.0 x 2.0 cm)
Wt: 2.20 oz. (62.4 g)
750-foot-level, 1250-foot-stope, Sterling Hill Mine, Ogdensburg, New Jersey, U.S.A.
This large thumbnail specimen consists mostly of a cluster of intergrown Franklinite crystals that extend off of an amorphous calcite base. These crystals do not exceed 0.5" (1.3 cm) in diameter, and almost all of them are damaged or incomplete- most of this is due to their intense intergrowth and the separation of this piece from its place of formation. The few crystals that are intact have good octahedral form, with well-defined edges and clean faces that possess a submetallic, pearly luster. They have the standard black coloration and are heavily intergrown with the calcite host in one area. I suppose that one could dissolve the calcite to expose more intact crystals.