570 DOMAIN VI. CARBONACEOUS. 



stances equal all the colours of the richest gems, 

 may arise from the iron and sulphur, as they 

 greatly resemble those of the beautiful ores of 

 Elba. 



Oxyd of copper has also been found in coal 

 at Schemnitz in Saxony ; cinnabar in that of 

 Jdria; native silver in that of Hessia; nay, gold 

 decorates the coal of Reichenstein in Silesia. It 

 is also said that antimony is found in that of the 

 isle called Bras d'or, near Cape Breton in Ame- 

 rica*. 



Werner's ar Werner has arranged one species of coal un- 

 rangement. ^ er fa s g enus graphite, namely the glance coal ; 

 which he again subdivides into the conchoidal 

 and the slaty. Glance, applied in the German 

 sense to some ores* and a kind of coal, implies 

 that they have a peculiar bright lustre j and his 

 glance coal with the colour of tempered steel, or 

 a bright variable blue, and which burns without 

 flame or smell, is the same with that found at 

 Swansea, here arranged as a structure of anthra- 

 cite; for it has neither the appearance nor chemi- 

 cal character of graphite. The slaty glance coal 

 of Werner, the kohlenblend, or coalbletid of other 

 German mineralogists, is the anthracite. To such 

 inconsistencies have the forced and unnatural 



* Brongniart, ii. 10. 



