TAB, XVII, 



CUPRUM dendriticum. 

 Dendritical Copper*. 



Class 3. Metals. Ord. 1. Ductile. 

 Gen. 4. Copper. Spec. 1 . Native. 



Div. 2. Imitative. 



Syn. Cuprum nativum. Waller, v. 27 4. Linn, 

 Syst. ed. 12. v. 3. 143. 

 Gediegen kupfer. Emmerling, v. 2. 206. 

 Cuivre natif. De Lisle, v. 3, 305. Haiiy, v. 3. 518. 

 Native copper. Kirwan, v. 2. 128. 



N ot uncommon at the Lizard and other places in Cornwall, 

 in the crevices of quartzose rocks, or in serpentine, and is oc« 

 casionally found in North Wales, &c. It accommodates itself 

 n all directions to the smallest openings, ramifying, or inos- 

 culating, as in the specimen figured, or forming network. It 

 is generally so compressed as to have the impression of the 

 stone on the surface, giving breadth to the extremities, not 

 unaptly resembling foliage, which is often helped by the 

 tendency of the metal to crystallize. This it always partly 

 does, but in so confused a way that it can only be under- 

 stood by comparison with such specimens as have had more 



