Orkney sandstones differ in mineralogy and chemistry from the Altar Stone.

Mysteries Department. (2026). Orkney sandstones differ in mineralogy and chemistry from the Altar Stone. [Evidence EVD0CRWPKZP0857]. https://mysteriesdept.com/r/EVD0CRWPKZP0857

@misc{mysteriesdept_evd0crwpkzp0857,
  title     = {Orkney sandstones differ in mineralogy and chemistry from the Altar Stone.},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Evidence, catalog key EVD0CRWPKZP0857},
  url       = {https://mysteriesdept.com/r/EVD0CRWPKZP0857}
}