Massive, pinkish-lavender cherty sussexite, bordered by buff-colored calcite in a matrix of hydrothermally altered franklinite-willemite ore, and visually set off by bright orange zincite, here a late-stage alteration mineral. Note the zincite haloes around the black pyrochroite mass left of center, and bordering altered ore on the right. This is specimen ERV-1909 in the collection of Earl R. Verbeek.
Identifier: SSX30a Locality: South limb of the North Orebody, Sterling mine, Ogdensburg Specimen size: 13 x 10 x 5 cm Photo credit: Earl R. Verbeek