A fine specimen of gypsum, var. selenite, colorless and nearly transparent, containing (left side) fairly numerous included grains of franklinite and altered, red-fluorescent calcite. Minor secondary copper minerals are also present. This fine example is in the collection of Dick Hauck of Franklin, NJ.
Identifier: GYP1a Locality: Sterling mine, Ogdensburg, NJ Specimen size: 7 x 5 x 3 cm Photo credit: Earl R. Verbeek
