510 DOMAIN JV. TAJ.COUS. 



mens before me are evidently of a composite 

 rock. 



" We there see schistose parts of a greenish 

 grey, sparkling, which have the form of small 

 scales of chlorite; but these parts are very re- 

 fractory, and do not yield the glass of chlorite, 

 They do not form the tenth part of the mass of 

 this rock, in which parts of real steatite, of a 

 greenish white, predominate, soft, translucent, 

 and perfectly characterised. 



<c We besides find in this stone parts crystal- 

 lised in little straight plates, rhomboidal, nearly 

 rectangular, of a greenish grey, extremely bril- 

 liant, almost of a metallic lustre, a little harder 

 than steatite in mass, but with a grey streak. 

 These plates lay on one another, and form in the 

 stone glistening spots of an irregular form, three 

 or four lines in diameter, and one or two in 

 thickness. Viewed with a microscope, the sepa- 

 rated plates appear transparent and colourless - 9 

 but their reduplication renders them scarcely 

 translucent in mass. Under the blow-pipe they 

 show themselves very refractory ; they become 

 opake, and covered only on their edges with a 

 dark and brilliant amel. I cannot consider them 

 but as a species Qirayonnant, strahlsfem, of Wer- 

 ner, much like that of 1437* though with some 

 differences, 



