Wheeler — Recent Additions to Mineralogy of Missouri. 127 



COPPER. 



Chrysocolla, at the Cornwall Copper Mines, in St. Genevieve 

 County, as a thin incrustation with other oxidized products 

 in the chalcopyrite-bearing limestone, by H. A. Wheeler ; 

 uncommon. 



LEAD. 



LeadhillUe. In small green crystals and clusters, of excep- 

 tional beauty, from a lead mine near Granby, Newton 

 County. See American Journal of Science, Sept., 1894. 



Mimetile, at Seneca, in Newton County, as a thin crystalline 

 coating on galenite, by Dr. W. P. Jenney; rare. 



Artificial Silicate of Lead. Beautiful hexagonal prisms of 

 lead-silicate, resembling Pyromorphite, of an opaque 

 brown to transparent ruby-red color, and with a resinous 

 fracture, from the hearth of a lead roasting-furnace at 

 Bonne Terre, by J. T. Monell, E. M. See American 

 Journ. Science, Aug., 1885, and Sept., 1886. 



ZINC. 



Goslarite, at Joplin, Jasper County, as a white, stalactitic 

 incrustation in the blende mines ; first found very spar- 

 ingly by Broadhead, and later quite frequently in the 

 drainage of the mines, by Dr. W. P. Jenney. 



Ferro- Goslarite, at Webb City, Jasper County, as a brown 

 stalactitic incrustation in the old-workings of the zinc- 

 mines, by H. A. Wheeler ; rare. See American Journ. 

 Science, Mch. 1891 (Vol. 41). 



Amorphous Sphalerite, as an amorphous, white, pulveralent 

 mass or " natural-paint " in a zinc mine at Joplin, Jasper 

 County, by J. D. Robertson. Only a single pocket of 

 a few tons was found, and was evidently the result of 

 recent oxidation of the blende and subsequent chemical 

 precipitation. 



TITANIUM. 



Rutile, in Southeastern Mo., in the granites, as an accessory 

 mineral of microscopic size, by Dr. E. Haworth; rare? 



NICKEL. 



Siegenite. A new occurrence of this nickeliferous Linneaite 

 has just been found (Nov., 1894) at the Donnelly Lead 



