10 TERMINOLOGY. 



forms of compound minerals, and the mode of junction of the indi- 

 viduals of these compositions. The third division relates to those 

 characters which are not affected by the simple or the compound 

 nature of the mineral ; as color, lustre, transparency, hardness, 

 specific gravity, the state of aggregation, magnetism, electricity, 

 taste and odor. 



The Terminology of the science will, therefore, be treated of in 

 three sections, to which will be added, in notes, some account 

 of the chemical characters, since these fall rather within the science 

 of Chemistry than of Mineralogy . 



