MINERALOGY. 245 



a. Light grey, from Selbo in Norway. 



b. Dark grey, with very fmall garnets, 

 from Quarnberget in the pariih of So- 

 derli in the province of Jemteland. 



c. Dark grey, with prifmatical, radia- 

 ted, or fibrous cockle or ftiirl, from 

 the village of Handol, in the parifh 

 of Are in Jemteland. 



2. With kernels of garnet fcone, Partial- 



lis granatinis indetei minatis* 



a. Of pale red garnet itone, from Stoll- 

 berget in Norberke in Dalarne. 



The fin! of this kind, whole flaty 

 flrata makes it commonly eaiy to be 

 iplit, is employed for mill-ftones, 

 which without difficulty dininguifh 

 themfelves for that purpofe, if fand 

 is firft ground with them, becaufe the 

 fand wears away the micaceous parti- 

 cles on the furfaces, and leaves the 

 garnets prominent, which renders the 

 itone fitter for grinding the corn. 



SECT. CCLXIV. 



D. The Whetftone, Cos. Sax urn comfojitum 

 mica, quartzo, et for fan argilld martiali in ncn* 

 niiiiis fpeciebus. 



1. Of coarfe particles, Partiatlis dijlintiis. 



a. White, from Wanga in the province 

 of Skbne. 



b. Light grey, from Tcllemarken in 

 Norway. 



2. Of fine particles, Particulismlncribiis. 



a. Liver brown colour, from Selbo in 

 Norway. 



R 3 b. Blackiih 



