Mineralogy. 363 



100.397 



Formula: M 



: M j 



n 



mn J 



S 2 



5. Bronzite from the Stempel, near Marburgh. — This mineral is found in 

 Olivine, in small cleavable masses. The most distinct cleavage has a pearly 

 lustre and greenish bronze yellow colour. Two other cleavages, less distinct, 

 forms with the first an angle of 134° : It has a resinous lustre, and deep 

 greenish-brown colour. The hardness of this bronzite is = 5175 ... 6.0 ; 

 it is brittle, the streak white ; the spec. gr.= 3.241. It consists of 



