26 A SYSTEM OF 



SECT. XIX. 



E. Cryftallifed Gypfum, Gypfum cryftallifatum. 

 Gypfeous Drufen, Drufea Gypfe*. 

 i. Drufen of cryftals of pure iparry gypfum, 



A. Wedge-formed, Cuneiformes^ are com- 

 pofed of a pure fpar-Iike gypfum. See 

 Std:. xviii. i. 



i . Clear and colourlefs, from Switzerland. 

 2. Whitifh yellow, from Montmartre. 



B. Capillary, Capillar es. 



a. Opaque, whitifh yellow, from Stoll- 

 berget in Kopparberg Slan in Sweden. 



C Of ponderous fpar-like Gypfum, Marmor 

 metallicum Druficum. 



1. Jagged or like cock's combs, Criftatu 

 Thefe refemble cock's combs, and are 

 found in clefts or fiflures accreted on 

 the furfaces of balls of the fame fub- 

 flance. 



2. White, from Hartz and Kongfberg 

 in Norway. 



3. Reddifh, from Wildeman mine in 

 the Hartz. 



SECT. XX. 



F. Stala&itical Gypfum, Stalaftites Gypfeus. 

 Gips Sinter. 



This, perhaps, may be found of as many 

 different figures as the calcareous fialactites 

 or (inters. See Seel. xii. c. 



I have only feen the following, viz. 



Jimeflones and fluors, which is only produced by their being 

 ilowly heated, and teems to arife from a phlogilion, which is 

 deftioyed in a flowing heat. 



i. Of 



