250 ASYSTEMOF 



3. Of fine imperceptible particles, Parti- 



culis impalpabilibus. 



a. Black. The Touchftone, Lapis Ly- 

 dius, from Salberg mine, Hellefors, 

 Wefterfilfverberget, and Nor berg in 

 Weftmanland, and Ofterfilfverberget 

 in Dalarne, &c. 



t. Blueifh, from Ofterfilfverberget. 



c. Grey, from Dalwik in the parifh of 

 Sorberke in Dalarne. 



J. Reddifh, fromDalftugun in the parifh 

 of Rettwik in Dalarne *. 



SECT. CCLXVIII. 



H. Amygdaloides. Saxum bafi jafpided martially 



cum jragmentis Jpati calcarei et ferpentiniy ji- 



gurd ellipticd -f. 



It is a martial jafper, in which elliptical 



kernels of calcareous fpar and Terpen tine - 



Hone are included. 



£. Red, with kernels of white limeftone, 

 and of a green fteatites, from Gello and 

 Gullo in Norway, and the Hartz in Ger- 

 many. 



This is of a particular appearance, 

 and when calcined is attracted by the 

 loadftone ; it decays pretty much in the 

 air, and has fome affinity with the Trapp, 

 (Seel:, eclxvii.) and alfo with the Por- 

 phyry (Seel, eclxvi.). There are fome- 



* The black variety (3. a.) is fometimes found To compact 

 and hard, as to take a polifh like the black agat ; it melts, 

 however, in the fire to a black glafs, and is, when calcined, at- 

 tracted by the loadftone. Such a kind is found in the pariih 

 of Aria in the pr vince of Sodermanland. 



t The CarpL-lithi or Fruit-ftone rocks of the Germans D. C. 



times 



