MINERALOGY. 217 



2. Steel-grained, from Bowallen and 

 Skienfhyttan, in the parifh of Tuna, 

 in Dalarne. 



SECT. CCXXX, 



I. In form of calx, Zincum cakiforme cum 

 ferro fulpkuratum . Blende. Mocklead, 

 Sterile nigrum. Pfeudogalena, This is 

 found, 

 1. With coarfe fcales, 



a. Yellow, femi-tranfparent, from 

 Scharffenberg in Milhia, Schem- 

 nitz and Kongfberg. 



b. Greenifh, from Kongfberg. 



c. Black, Pechblende or Pitch Blende 

 of the Germans, from Salberg and 

 Falun in Sweden, and from Saxony. 



d. Blackifh brown, from Storfallfber- 

 get in Tuna in Dalarne. 



a. With fine fcales, 



a. White, from Silfberget in the pa- 

 rifh of Rettwik in Dalarne. 



b. Whitifh yellow, from Rettwik. 



c. Reddifh brown, from Salbero- Silf- 

 verberget, and Hellefors in Weft- 

 manland. 



3. Fine and fparkling ; at Goflar called 

 Braun Bleyertz. 



a. Dark Brown, from the Rammels- 

 berg in the Hartz, and Salberg in 

 Weftmanland *. 



SECT. 



* The zink, in thefe lafl kinds of blendes, is as it were in 

 form of a calx or glafs, fo that they are often tranfparent: 

 C the contrary, in the zink ore, (Seft. ccxxix. a.) it fecms 

 rather to be in a metallic fcrm, or like moil ether metals, mi- 



rieralifed 



