Notes on the secondary enlargement of augites in a peridotite from Little Deer Isle, Me

G. P. Merrill
1888 American Journal of Science  
WHILE engaged in the study of sections of a peridotite from Little Deer Isle in Penobscot Bay on the Maine coast, the writer observed certain peculiarities of the augitic constit· uent which, if rightly interpreted, seem worthy of notice in the columns of this Journal. The rock consists essentially of olivine and augite, with accessory magnetite, chromite, apatite, and rarely a plagio. clase feldspar (~) It therefore belongs to the variety of peri· dotites which Professor Rosenbusch designates as pic'rite.
doi:10.2475/ajs.s3-35.210.488 fatcat:yubmymjbwve5jdcgyk7dfqfkim