248 SERPENTINE. 



green : dark olive, pale olive, dark, or bright 

 yellow, green, and pale greyish green. It also 

 occurs of a pale fawn colour, and white ; and 

 there is an esteemed variety consisting of bright 

 and very dark green intermixed. Translucent 

 serpentine passes into common steatite, and into 

 hard steatite, or figure stone ; nor does it appear 

 to have a much greater claim than these minerals 

 to a place in the catalogue of rocks. 



The minerals which chiefly occur imbedded 

 in serpentine are the following, and some of 

 them, besides diallage, in such abundance as 

 materially to modify the character of the rock. 



Diallage. Pyrope. 



Asbestos. Calcareous spar. 



Amianthus. Schiefar spar. 



Steatite. Oxydulous iron. 



Hornblende. Chromat of iron. 



Actinolite. Hydrophane opal, 



Tremolite. Chrysolite, 



Talc. Idocrase. 

 Jade, 



Rocks, composed of serpentine and carbonat 

 of lime, are found of considerable extent, of 

 which the verde antico is a striking variety. 



