Mar 25, 2018
Fiedlerite, Diaboleite
Pb3FCl4(OH)·H2O, CuPb2Cl2(OH)4
Locality:
Baratti slag locality, Piombino, Livorno Province, Tuscany, Italy
Field of View: 2 mm
Very nice sample with two fiedlerite crystals in front and the other that only the terminations are visible. The diaboleite is encrusted on the two crystals. In the foreground two crystals of laurionite.
Bonifazi Marco’s Photo
Fiedlerite is a secondary extremely rare mineral produced by reaction of halide-bearing seawater and lead bearing slag.
Diaboleite is a deep blue mineral, pale blue in transmitted light.Diaboleite occurs in manganese oxide ores, as a secondary mineral in lead and copper oxideores, and in seawater-exposed slag.