119 



TAB. CLXII. 



FERRUM sulphureum; var. 

 Hair-like Pyrites, or Sulphur et of Iron. 



111! 



Class 3. Metals. Order I. Homogeneous. 

 Gen. 8. Iron. Spec. 5. Sulphuret. 



Div. 2. Imitative. 



1 his beautiful specimen was found many years ago in the 

 magnificent Lime Quarries of Lord Elgin, at Broomhall in 

 Fifeshire, and is the only one of the kind which has been 

 discovered. 



The specimen is in the possession of my kind friend 

 Robert Ferguson, Esq., who was so good as to send it 

 from Scotland for me to delineate. The appearance of so 

 many radiating, straight, bristle-like forms has a re- 

 markable effect, and is very striking. Although they are 

 extremely attenuated, they seem to be square, and are 

 probably elongated octaedrons. Their passing through and 

 among the Pearlspar* so uninterruptedly is worthy of 

 notice, and will give us reason to believe that both sub- 

 stances settled from their solvents at the same time, or 

 nearly so, without disturbing each other. They are both 

 upon shelly grayish Lime Stone. It is with much pleasure 

 that I introduce this as a British specimen, as it is not at all 

 generally known to be found any where but at Joachimsthal 

 in Bohemia, and even there very seldom. 



* See tab. 19. 



