AM_Penfieldite
Formula: Pb2 Cl3 (O H)
Name: Penfieldite
Unit cell: 11.393 11.393 4.024 90.0 90.0 120.0 , V=452.34
Space group: P-6 (174)

Merlino S , Pasero M , Perchiazzi N , Gianfagna A , Mineralogical Magazine , 59 (1995) p.341-347, X-ray and electron diffraction study of penfieldite:, average structure and multiple cells, Locality: Etruscan iron slag, Baratti beach, Piombiono, Tuscany, Italy