157 



TAB. CLXXXIL 



SI LEX Talcum. 

 Talc. 



Div. 1, Crystallized. 



Syn. Talc, Venetian Talc. Kirivan, v. 1. 150. 

 Talc. Baity, t. 3. 252. 

 Chlorite. Kirwan, v. 1. 147. 

 Talcum viridans. T. lamellare, and many 



others. Linn. ed. 13. t. 3. 51 et seq. 

 Mica Talcosa. Ibid. L 3. 59. 

 Talk. Emmerling, t. 1. 391. 



Chlorite is not a scientific name, according to our pre- 

 sent improvements in mineralogical knowledge, as it is per- 

 fectly confined to a green variety of Talc, found either in 

 small laminated crystals, granular fragments or masses, or 

 disseminated through Quartz, &c. Its grain is sometimes 

 very fine, I find in this latter state it is scarcely known by 

 any one, as any green earthy substance may be confounded 

 with it. Talc and Mica, as observed under tab. \ 80, have 

 been till lately much confounded; but since the publication 

 of Mr. Kirwan's excellent work they have been more and 

 more defined. 



The upper specimen came from Stenna-Gwyn in Corn- 

 wallj where it is found in abundance, often holding Phosphate 



