Tenth Supplement to Danas Mineralogy. 219 



a so called'soapstone, from Deep River, Moore Co., North Carolina. It has a schis- 



ficieiitiy distinct to be separable ; brittie. Color, greenish to yellowish-white. Cleav- 

 age very distinct, resembling talcose slate. H.=l-5. Sp. gr. 2 92. Before the 



slightly, knd by prolonged heating, fuses with difficulty on the thin edges. With 



was found at Carbonton, Moore Co., North Carotin 

 I than the specimen from Deep River, and was som< 

 1 density of 2-82. 



ture. It furnishes additional evidence that the peculiar pyrognostic characters of 

 attention was first called to this substance by Mr. George Munger, ofthe firm of 

 Dean <fe Munger, of this city, who have brought it into u-^e extensively in the form of 



well adapte'd" '"^ °° ^ ^ ^^ ^° 



.^Qi-ARTz [p. 145, II, III, IV, VII, yill].— Rammelsberghas published aninterest- 



tliat caustic potash very perceptibly attacks quartz, and shows the impossibility of 



HLtaryTith'£deLi^^^ 

 Ldlbe^rproposTs to wTow out the suggestion of Fuchs, who 



treatment"wi'th ™?tih^k^S""SS'amounted'to^ fi-l^ per cent of the ori- 



ginal substance Opals also were found to differ very much in their solubility ; 



;no«T^ [p. 167. III].-Analysis of rhodonite, from Sbabenholz, near Elbin- 



i! '?4°" P^ }'Ji l\ E'-J,' o?5=iooe5 



