39 



TAB. CCCXXIV, 



Chlorite Marie. 



When at Sidmouth I found on the shore, nearly under the 

 marley rocks, a Limestone of some tons in weight, replete 

 with shelly remains like this specimen, which is part of 

 an English Boulder. This was in Mr. Day's collection, 

 and he used to admire it for its singularity. It is composed 

 of Marie and Chlorite with the Carbonate of Lime shells ; 

 and the chain-shot appearance of the sections of the shells 

 is always presented, let the stone be broken or cut on which 

 side it may ; which, in most other stones from Devonshire 

 containing shells of a similar structure, seldom happens ; 

 for these generally break parallel with the sides of the 

 shells showing their volution. The Marley Chlorite includ- 

 ing the shells is rather the less compact, and takes a bad 

 polish, as in the attempt it becomes rather browner. Upon 

 being fresh broken, it presents a greenish tinge, which is s 

 I presume, owing to the Chlorite. 



