3G4 SUPPLEMENT TO DESCRIPTIONS OF SPECIES. 



sonite, calamine ; at Des Moines, quartz crystals, selenite ; Makoqueta 

 R., limonite : near Durango, galenite. 



Cedar River, a branch of the Des Moines. — Selenite in crystals, in 

 the bituminous shale of the coal measures ; also elsewhere on the Des 

 Moines, gypsum abundant ; argillaceous iron ore, spathic iron ; cop- 

 peras in crystals on the Des Moines, above the mouth of Saap aud else- 

 where, pyrite, blende. 



Fort Dodge. — Celestite. 



Makoqueta. — Hematite. 



New Galena. — Octahedral galenite, anglesite. 



MISSOURI. 



For the distribution of the lead mines see page 147. The number 

 of minerals associated with the lead ore varies greatly in the different 

 lead regions. Mine la Motte. and some old openings in Madison Co., 

 are peculiar in affording cobalt and nickel ores abundantly. At Gran by 

 and other mines the chief zinc ore is calamine, or the silicate of zinc, 

 while in the mines of Central and Southwest Missouri it is compara- 

 tively rare, and smithsonite is the prominent ore — as is the case in 

 Wisconsin ; yet calamine is the most abundant zinc ore in the State. 

 As stated by A. Schmidt, the zinc ore, in each case, is found as a sec- 

 ondary product to sphalerite (blende) ; the cerussite often coats the 

 galenite, or has its forms, indicating thus its source ; the limonite is 

 also secondary, and has come in mainly through the oxidation of py- 

 rite. At the Granny mines, the calamine is called, among the miners, 

 " Black Jack ; " blende, " Resin Jack ; " a white massive smithsonite, 

 " White Jack ; " and the cerussite is the " Dry Bone ; " thus departing 

 from ordinary miners' usage. Gold has been found in the drift sands 

 of Northern Missouri (Broadhead). 



Adair Co. — Gothite in caicite. 



Barton Co. — Pickeringite as an effloresence on -sandstone. 



Chariton Co. — Near Salisbury, gypsum (selenite) in coal beds. 



Cole Co. — At Old Circle Diggings and elsewhere, barite ! galenite, 

 chalcopyrite, malachite, azurite, pyrite, caicite, calamine, sphalerite. 



Cooper Co. — Coilins Mine, malachite with azurite, etc. 



Dade Co. — Smithsonite. 



Franklin Co. — Cove Mines, anglesite, galenite, cerussite, barite. 



Iron Co. — At Pilot Knob and Shepherd Mountain, hematite, mag- 

 netite, limonite, manganese oxide, bog manganese. 



Jasper Co. (adjoins S. E. Kansas). — At Joplin Mines, galena ! spha- 

 lerite, pyrite, cerussite, calamine, dolomite, bitumen. 



Jefferson Co. — At Valle-'s, galenite! cerussite, anglesite, calamine, 

 smithsonite, sphalerite, hydrozineite, chalcopyrite, malachite, azurite, 

 pyrite. barite, witherite, limonite. At Frumefc mines, 8i miles from 

 Do Soto R. R. station, galena, barite! smithsonite ! pyrite, limnite. 



Madison Co. — At Mine la Motte, galenite! cerussite! siegenite (nickel- 

 linnaeite), smaltite, asbolite (earthy black cobalt ore), bog manganese, 

 chalcopyrite, malachite, caledonite. plumbogummite, wolframite. 



Morgan Co. — At Cordrav Diggings, galena, blende, barite. 



Newton Co. (adjoins S. B. Kansas).— At Granby Mines, galenite ! 

 eerusfdtc, calamine/ sphalerite, smithsonite. hylrozincite, greenoclcite 

 ion sphalerite), pyromorphite, dolomite, caicite, bitumen, buralite. 



