Three samples of intergrown heavily striated gray (iron or limonite stained) tabular cerussite crystals. These samples were probably once one, however the loose intergrowth of the crystals has resulted in a fragile specimen.
- Gibbes, Lewis Reeves, 1810-1894
- University of South Carolina. McKissick Museum.
- Perkiomen Mines, Perkiomen, Montgomery County, Pennsylvania, United States
- Historic Southern Naturalists