704 ON A GLAUCOPHANE SCHIST FROM CONANDALE RANGE, Q. 



The epidote was assumed to be, as observed in the mode, highly- 

 ferriferous; and to contain 0*049 mol. H2O, 0*178 mol. CaO, 

 0-087 mol. FeoOg, 0*060 mol. AUOg, and 0*294 mol. SiO.^. 



All the MgO (81 mol.), FeO (9 mol.), AI2O3 (11 mol.), and 

 HgO (28 mol.) left, after satisfying the other minerals excepting 

 quartz, was allotted to chlorite, whose composition would be 

 between that of chlinochlore and that of pennine. 



3. Glaucophane Schist, 

 Conandale Ranse. 



4. Glaucophane Rock,t 

 Mt. Mee. 



1-21 



99*57 



99-94 



Salfemic. 

 Order - . Gallare. 

 Docalcic. 

 Presodic. 

 Auvergnose. 



Salfemic. 



Order 4. Vaalare. 



Docalcic. 



Presodic, 



The Mt. Mee glaucophane rock I have already shown to be 

 most likely an altered tuff of the gabbro famil3\ It is associated 

 with massive igneous rock altered to chlorite and amphibolite 



* If insufficient P.2O5 be present, this CaO serves to reduce some of the 

 diopside to olivine. 



t I have recalculated the norm of this rock because in my previous 

 calculation I discovered some errors, which, however, do not affect its 

 systematic position. 



