(Grube Einigkeit, Bauersberg, Bischofsheim, Bayerische Rhön, Franken, Bayern, Deutschland)
A lignite (pyritic) mine, located on Bauersberg mountain near Bischofsheim.
Ref.: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 452, 570.