DOMAIN VIII. DIAMICTONIC. 57 



NOME XXIX. GYPSUM, WITH SILEX, 



[DAVITE, from Davy, 1810.] 



To this division belongs the noted marble of Marble of 

 Vulpino, analysed by Fleurieu de Bellevue*. It 

 is of an uniform whitish grey, sometimes veined 

 with a bluish grey. It forms no effervescence 

 in the nitrous acid, though it has the -exterior 

 aspect of a saline marble. When the powder is 

 thrown on burning coals, it yields a slight but 

 easily perceivable phosphoric light. Its specific 

 weight amounts to about 200 French pounds for 

 each cubic foot. It is qqarried at Vulpino, 15 

 leagues from Milan, and is employed with suc- 

 cess in that city in making tables, columns, 

 vases, or other works of that kind. Before the 

 analysis it was regarded as a marble. 



HYPONOME i. 

 Uniform. 



HYPONOME II. 



Veined. 



* Brard, ii. 474. Patrin, iii. 222. 



