@misc{indiciae146635b1517f, title = {The atomic ratios of natural ferruginous biotites with reference to 'the stability relations of the ferruginous biotite, annite'}, author = {Margaret D. Foster and David R. Wones and H.P. Eugster}, year = {1963}, doi = {10.1093/petrology/4.2.302}, url = {https://pubs.usgs.gov/publication/70221066}, note = {Source identifier: 70221066} }