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Donpeacorite: (Mn,Mg)MgSi2O6 Turneaureite: Ca5[(As,P)O4]3Cl Parvowinchite: Na(NaMn++)(Mg4Fe+++)Si8O22(OH)2
Comments: Colorless, transparent turneaureite masses with light brown tirodite (parvowinchite) and darker brown donpeacorite. Location: 2500' level of the mine, ZCA Mine No. 4 (St Joe Mine; ZCA No. 4 mine), Balmat, Balmat-Edwards Zinc District, St Lawrence Co., New York, USA. Scale: Picture Size 0.5 cm. © Jeff Weissman / Photographic Guide to Mineral Species
Donpeacorite: (Mn,Mg)MgSi2O6 Braunite-I: Mn++Mn+++6SiO12
Comments: Brown crystalline massive donpeacorite with dark brown black braunite. Location: Zinc Corporation of America Mine #4, Balmat, Saint Lawrence County, New York, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species