442 TRANS. ST. LOUIS ACAD. SCIENCE. 



3. In South-east Missouri — ?A Mine La Motte, Madison Co., and at 

 St. Joe, St. Francis Co., with Linnaeite and Chalcopyrite in lime- 

 stone; at Einstein Silver Mine, Madison Co.. with Sphalerite and 

 P_yrite in Qiiartz; at Valle Mines. Jefferson Co., with Sphalerite, 

 Calamine, and Smithsonite; in Madison Co., in small veins in Por- 

 phyry ; in numerous other localities, generally with Barite or in clay 

 or sand. Contains 1-4 ozs. Silver' per ton ; a fine-grained variety 

 in Madison Co. contains 6-7 ozs., and the Galenite at Einstein Sil- 

 ver Mine contains 40-110 ozs. per ton. 



Minium. 



At Virginia Mines, Franklin Co., massive with Cerussite, formerly 

 found in large quantities. 



Cerussite. 



At Valle Mines, Jefferson Co., beautiful crystals lining the walls of cavi- 

 ties in Galenite. 



At Granby Mines, Ne-wton Co., in amorphous, porous or compact pieces 

 of earthy appearance and white or reddish color. A gray ashy variety 

 surrounds unaltered Galenite or fills cubical cavities. Cavities in 

 massive Cerussite, formerly occupied by crytsals of Galenite, are often 

 coated by crystalline C, from which gray to black translucent crystals 

 of C. project towards the interior of the cavity. 



At Oronogo, Jasper Co., in amorphous porous pieces with drusy aggre- 

 gations of well developed crystals, sometimes over \ of an inch long. 

 They often show a combination of one brachydome, which is termi- 

 nated at both ends by the faces of the pyramide and of the prism. 



K\. Mine-h-Burton and Cove Mines, Franklin Co.; &t Mine La Matte, 

 Madison Co.: and at Palmer Mines, Jefferson Co., massive, and in 

 well developed crystals. 



At Boaz Mine, Cole Co., massive. In most of the lead mines of the 

 State as a gray coating on Galenite. 

 Pyromokphite. 



At Gra7iby Mines, Newton Co., in small crystals in cavities of amor- 

 phous Cerussite; in loose, rounded pieces from pea to nut-size, yellow- 

 ish-green and earthy on the outside, compact and of lighter color in the 

 interior; mostly as shaly greenish coating on Cerussite. 



Anglesite. 



At Cove Mines, Franklin Co., in fine crystals, about I of an inch long and 

 \ of an inch thick, on Galenite crystals whose surface is corroded and 

 partially coated with Cerussite. They show a combination of the 

 macropinacoid, the one-half macrodome, the prism, the brachypyra- 

 mide 2, and the brachydome; or of the brachypyramide 2, with the 

 brachydome. The crystals are striated along the faces of the domes, 

 and of a dark gray color, due to a thin coating of Cerussite. When 

 treated with dilute hydrochloric acid, the coating dissolves and leaves 

 the Anglesite crystal milk-white and with smooth faces. 



