"74 DOMAIN IX. ANOMALOUS. 



HYPONOME I. 



Ocular Miagite. 



Micronome 1. With straight lines. 



Micronome 2. With zigzag. 



Micronome 3. Dendritic. This is the beauti- 

 ful stone only found in the ruins of Rome, the Nero 

 e Bianco, falsely called a granite. 



NOME II. NIOLITE. 



Faujas, in his late interesting work of geology, 

 is the first who has described this singular rock, 

 of which he has also published a coloured plate*. 

 Description. His general description is that the base or ground 

 consists of compact felspar, or felsite, of a brown 

 colour, marbled with red; containing large 

 spherical kernels of a flesh-coloured felspar, dis- 

 posed in unequal rays or petals compressed upon 

 each other, and diverging from the centre to the 

 circumference. M. Rampasse, who brought 



* Paris, 1809, 8vo. ii. 245. 



