MINERALOGY. Si 



SECT. LXXIII. 



2. Sparrv, Bafaltes fpatofus. 



a. De.jp green, (the mother of the eme- 

 ralds) from Egypt *. 



b. Pale green, from Wefterfilfverberget, 

 and Hagge, at Norberke, Linbaftmoren, 

 at Grangierde, in the province of Weft- 

 manland, &:c. 



c. White, from Silf-udden, at Wefter- 

 filfverberget, Pargas in Finland, the 

 lime-rocks at Lillkyrkie, 'm the province 

 of Nerike, &c. l * 



This occurs very frequently in the 

 fcaly lime-ftones, and its colour changes 

 from deep green to white, in proportion 

 as it contains more or lefs of iron. 



SECT. LXXIV. 



3. Fibrous, Bafaltes particulis fbrojls •, Striated 

 cockle, or fhirl : it looks like fibres, or 

 threads made of glafs. 

 A. Cf parallel fibres, Bafaltes fibris paral- 

 lellis, 



a. Black, from Gufcavsberg, in the pro- 

 vince of Jemtland, the ifiand Uto, in 

 the Lake Malaren, &c. 



b. Green, in moil of the Swedifh iron 

 mines. 



c. White, from Weflerfilfverberget, in 

 the province of Weftmanland, Lill- 

 kyrkie in Nerike, and Pargas in Fin- 

 land. 



ThePlafma, or mother of the emerald of authors, is a fine 

 p'-l lucid true quartz, of a green or emerald colour, not a ftone 

 of this kir.d. D. C. 



G B. Of 



