image BXO51.jpg
track, Sadgill to Gatescarth, Longsleddale, Westmorland, NY40 -- Rock, hand specimen of a slate metamorphosed from tuff, with spherulites, from the track from Sadgill to Gatescarth Pass, Longsleddale, Westmorland, 2012.
Ordovician; Borrowdale volcanic group.
The slate probably came from Wrengill Quarry.
(photo . .2012)