@misc{indiciae544db0f21439, title = {Tourmaline as a recorder of ore-forming processes}, author = {John F. Slack and Robert B. Trumbull}, year = {2011}, doi = {10.2113/gselements.7.5.321}, url = {https://pubs.usgs.gov/publication/70032509}, note = {Source identifier: 70032509} }