Tenth Supplement to Dana's Mineralogy. 217 



MatEnrrK [p. 49, I].— F. A. Genth has given analyses of the miUerite from 

 Gap Mine, Lancaster county, Pennsylvania. (This Journal [2], xxxni, 195.) It there 



black color at thrunp°e'? parTonh'l tufts or little crystals'^ while the lower part has 

 th. brass yellow color and metallic lustre of miUerile. Two analyses-No. 1, finest 

 millerite— No. 2, partly altered millerite. 



S Cu Ni Co Fe Insol. 



MoNAziTE [p. 402, V] — F. A. Genth mentions a crystal of this species from 

 the t?old washings of Todd's branch, Mecklenburgh county, N. C, associated with 

 diiimonci, garnet and zircon. It is 1 of an inch long, a little over \ wide J^'lJ^'J^"^; 

 ing planes: 1, H, u','^ /, -1 a/d^ ^"."^ The crystal being slightly waterworn has the 

 edges somewhat rounded, by wiiich some otlier planes may have been obliteratea. 

 G. at 12° C.=5-203. (This Journal [2], xxxiii, 204.) 



Nagtagite [p, 65, VIII].— An analysis of Ma.7y«£rt7e disseminated through a rock 

 from Nagyag gave S. J. Kappel after excluding foreign matter, 

 S Au Fe Se Ag Pb 



Opal [p. 151, III, IV, VI].— A variety of hydropha 

 mines near Thebes (Greece) analyzed by G. Tschermak gave, 



G = o.n,tOOC ^' ?9 9^4 = 100-1 



OaTHocLASE [p. 242, II, HI, V-VITI]. - G. vom Rath gives in Fogg. Ann- 

 ^ Analyses orfewTpal- from^he granite of Canton, Ireland, by S. Haughton (Jour. 

 Geol. Soc. Dublin, viii, 169). 



eSs 1*1, 0^56 0^^6 t' 1?52 ?^ O^7;=100-5a 



PaoLEarrE [p. 251, VIII. IX].- Analysis oiphnlerile from Lod^ve, Dept. Herault 

 I'rance), by F. Pisani (^Comples Rendm, liii, 1072), 

 gi il ^ 



470 39-4 14-4=1008 



giving the formula SPSi^+efl 



Pi>-.rE [p. 45].-A. Streng has communicated »^«»f y^'^^^ ^..""'"^f fJerberJ 

 eTiDn,„..o ».. u..-':j._.:. , ^j«|, Knop', ninitoid ranal. 1). It occurs at Auerberg. 



^> physical characters are tjiven except the specific gravity, 275 Streng also 

 gves Hu analysis of pinUe{I^l 2) from Muhlentbal. ''^^'J'^^^;^^^^'^^^^^ 'iH 

 S"'£ l^'ofte^'covered^wi^h'^a thTn browaSTrust. G.= 2 62.-{^. d- H. Zei- 



^f oiiguclase (Kenng.,tt,' Ueberdcht, 1860, 39). 



Si ll te Ca SI? ^ l\ If, ,o.ge 



i ^^ l?-f? It! Ill S ?S S-l5 I'ol = ll'l 



12 8 68 5-84 



