Rock oil (Scotland)

Rock oil (Scottish Gaelic: Ola-nan-creag), is an ointment made from a thin film obtained on rocks by the sea, and used for a relief for burns and scalds.

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It is not to be confused with petroleum which literally means the same.

References

• This article incorporates text from "Dwelly's [Scottish] Gaelic Dictionary" (1911) Ola-nan-creag