@misc{indiciae640b7d34f79d,
  title = {Mantle xenocrysts from the Masontown, Pennsylvania (USA) kimberlite: An ordinary mantle with Si-enriched spinels},
  author = {D.J. Schulze and B. Carter Hearn},
  url = {https://pubs.usgs.gov/publication/70206320},
  note = {Source identifier: 70206320}
}