2 Video of a visit to a section of Cleveland dyke in Teesdale. Sorry for the quality of the video's but the conditions were not great.
16- These curb stones run along the Boothem area of Central York, all i tested were attracted to the rare earth magnet shown, i did not have a none rare earth magnet with me, but would gamble one would easily stick,as ime sure these stones originated from one of the quarry's in The south west area of Cleveland.
19 Another experiment.