150 



They may also be more or less easily sepa- 

 rated ; and, when very distinct, the scaly texture 

 might with equal propriety be called a scaly 

 structure. 



The most imperfect scaly texture passes into 

 the flat granular ; and, it need scarcely be added, 

 that several textures may be intermixed. 



COMPACT. 



In the compact texture, no appearance of ob- 

 scure integrant parts is to be seen ; or it may be 

 considered to imply the absence of all the preced- 

 ing modifications. The varieties of aspect which 

 accompany the compact texture, appertain to the 

 following division. 



FRACTURE. 



By the fracture of a rock is understood the 

 appearance of a fresh surface after forcible sepa- 

 ration. As this depends in a great measure on 

 the texture, it is now easy to perceive how, in 



