Manganoan Calcite (Fluorescent) on Sphalerite, Pyrite, and Galena
Pachapaqui District, Bolognesi Province, Ancash Department, Peru
Large Cabinet, 16.1 x 9.0 x 5.0 cm
Ex. Dr. Art Soregaroli
Fine, highly representative combination piece from Peru, specifically the Pachapaqui District. The initial plate of lustrous, striated Pyrites was generously ringed by sharp, translucent to gemmy Sphalerite crystals (up to 1.9 cm), along with Galena cubes. The final generation is hundreds upon hundreds of 3-4 mm of complex, light pink Manganoan Calcite crystals. One side of the piece is completely covered, while the presentation side has the many Calcites placed decoratively on and around the sulfides. As expected, the Manganoan Calcites fluoresce a brilliant orange. There are a number of cleaves on the Sphalerites from contacting, but by their very nature they blend in well, and the overall good aesthetics of this piece are not really affected.