Not sure of this a crustose of foliose lichen however it's very attractive regardless.
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Lat/Lng: 53.8887182, -0.1874181
OS grid ref: TA192451
This lichen was found on an old concrete post down an old railway line.