558 DOMAIN VI. CARBONACEOUS. 



circumstance fully distinguishes anthracite from 

 graphite. 



" M. Fleuriau de Bellevue has found anthra- 

 cite crystallised in regular hexaedral plates, on 

 a granitoid, which is found in isolated blocks on 

 the quays of Saardam, in Holland*. It is 

 thought these rocks have been brought from 

 Norway. This anthracite, according to M. 

 Vauquelin, only contains carbon, silex, and 

 argil. 



" Anthracite is also mentioned in the neigh- 

 bourhood of Schemnitz, in Hungary, in a vein. 

 At Kongsberg, in Norway, it is mingled with 

 native silver. In Spain, in the port of Pajares, 

 which separates the kingdom of Leon from the 

 principality of the Asturias, it reposes on a clay- 

 slate; and, according to M. Proust, contains 

 0,93 of carbon, and 0,07 of sand, argil, and iron. 

 It is used in painting, the same as lamp-black. 

 (D. B. Canga-Arguelles.) 



" Anthracite is not exclusively found in pri- 

 mitive regions. M. Hericart-Thury has shown 

 that that which is found in the department of 



* In the curious collection of rocks formed by the venerable 

 Besson, formerly director-general of the mines of France, the author 

 was surprised to find numerous specimens from Zealand ; and the 

 possessor has even adduced them as such in his printed works. 

 They were from ballast thrown on the quays of Zealand. The 

 quays of London furnish many curious rocks. 



