Tenth Supplement to Danas Mineralogy. 

 •rites the formula: 4(fi2 gi+S)+(2R,C+3&). 



, II, VII].— E. J. Chapman has pubhsbed ai 

 ountain, Georfria, in which he endeavors to s 



his first article on the subject, Prof. Chapm; 



o outweigh'] 



coming from Sinclair county in North Carolin 

 crystals had already been fiorured by Prof. Df 



Laumoxtite [p. 307, IV-VI]— Analyses of altered laumontite from Lake Su- 

 perior, by Lewinstein show that the crystals are partially converted into feldspar 

 (orthoclase »)— Kopp, Jahrenberirht, 1860, 771. 

 j liKPtDoLiTE [p. 226, 508].— In connction with the discovery of the two new 



I (he Rozena lepichlite has been made in IBunsen's Laboratory by Cooper. To deter- 



.Si^ Si Pe Ca % ftb Cs° ti LiFl NaFl KFI fl^_ 

 Smix ^"""""^ °^ ^"""""^ replacing oxygen is 6 48 per cent.-(/o«r. Frakt. 



TK [p. 231, III, V, VI, IX].— Analysis of I 



57-24 2^96 18 61 93 0-91 = 100-65 



-Zeihchr. Geolog. Geselhch. xi, 496, in Kopp's Jahresbencht, 1860, 760. 



1 Y^n.. [p. 390.]-This rare mineral has been found by von Kobell amo 

 Y^^ ores from Vadainsk's Mine in the Nertschinsk District, Siberia /. Pr. 

 Ixxiiii, 45 1). The mineral ociurs in radiated clusters of ^mall^cry^taU of an 

 "epit'atel' whersfJw^V'hlate^rfil^rsTrth^flame of'a^ candle. Analysis gavi 

 i'bS Cu fiwithtr.Cl 



— aumixiure ot earthy anglesite. 



