Biotite schist from Great Plains Domain, North America Plate
USA | |
| Spry, P. G., McFadden, S., Teale, G. S., Alers, B., Shallow, J. M., & Glenn, J. M. (2021). Nodular sillimanite rocks as field indicators to metamorphosed massive sulfide deposits. Ore Geology Reviews, 104632. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Globe pegmatite, South Petaca, Petaca Mining District, Rio Arriba County, New Mexico, USA