356 NOMENCLATURE. . 236. 



dral and prismatic Iron-ore), Grey Manganese- ore (prisma- 

 toidal Manganese-ore), &c. The same name of Ore must 

 likewise be applied to other species, which are connected 

 with the preceding ones by equal degrees of natural-histo- 

 rical similarity. Such are Rutile (peritomous Titanium- 

 ore), Anatase (pyramidal Titanium-ore), Wolfram (prisma- 

 tic Scheelium-ore), Uranite (uncleavable Uranium-ore), &c. 

 All these species form together one natural "order, which 

 bears the name. The name acquires, therefore, its signi- 

 fication and application, from the nature of the genera 

 and species which the order contains ; and is transferred 

 upon them in so far as they belong to that order. Hence 

 every thing must also bear the name of Ore, which belongs 

 to the order Ore, or, in other words, it will be said to be. 

 an Ore ; and a mineral is called an Ore, only because it be- 

 longs to this order. Thus the idea of the name of Ore 

 becomes exactly determined in conformity to the idea of 

 the order. A newly discovered mineral, which, on account 

 of its natural-historical properties, belongs to the order Ore, 

 assumes this name, or comes as it were with this name to 

 the notice of the world, and is thus secured from a burden 

 which arbitrariness very soon would load upon it, as long 

 as there does not exist a systematical nemenclature. 



The signification of the name Pyrites has been better main- 

 tained in its purity. Most of the minerals hitherto called 

 Pyrites, really belong to that natural order, upon which the 

 name of Pyrites has been fixed. Such are Copper-pyrites 

 (pyramidal Copper-pyrites), Iron-pyrites (hexahedral and 

 prismatic Iron-pyrites), Arsenical pyrites (axotomous and 

 prismatic Arsenical-pyrites), &c. Other species, that ne- 

 vertheless belong to the same order, have hitherto not been 

 called pyrites ; as Cobalt-glance (hexahedral Cobalt-py- 

 rites), white Cobalt-ore (octahedral Cobalt-pyrites), Kup- 

 fernickel (prismatic Nickel-pyrites). Cobalt and Nickel are 

 metals, and minerals which bear these names must belong 

 to the order Metal. But if Iron-pyrites be a Pyrites, that 

 is to say, if it belong to a certain natural order, all the rest 

 likewise must belong to that order, and consequently as- 



