ttODE VIII. GRANITEL. 207 



out the distinction between primitive and second- 

 ary mountains. 



Lehmanite of felspar and quartz, from Corn- 

 wall. 



The same of white quartz and red felspar, from 

 Scotland. 



It is common in the Alps, and other chains of 

 mountains. 



Lehmanite of a reddish white, from Sweden*. 



Lehmanite, from Grimsel. It is also found in 

 Nassau and Siberia, and near Portsoy, in Scot- 

 land. Linnaeus, by Gmelin, 214. 



Of a yellowish white, from Finland. 



Da Costa says, p. 278, that part of Newry, 

 Ireland, is built of this stone, there called mountain 

 grit. Another part is of felspar and large green 

 mica. 



STRUCTURE III. ENKELITE, QUARTZ WITH SIDE RITE. 



The name is derived from Henkel, who may be Henkefit*. 

 ranked among the fathers of lithology. The al- 

 liances between quartz and siderite seem to be 

 rather uncommon, felspar having been commonly 

 mistaken for the former substance, 



Henkelite, from Switzerland. 



* Wall. i. 422. 



