Calcite, Galena. (CaCO3, PbS)
Dimensions:Dimensions: 5.5 x 4.6 × 2.7cm.
Object number: 2019.3.3662
Descriptioncalcite: pale yellow etched scalenohedra to 4 cm long on octahedrally- truncated gray 1-1.5 cm cubes. Intervening layer of marcasite, causing yellow-lined pits in the galena.