These have been picked up on the Berwick (UK) coast. Any information on any of them very much welcome.
Pictures are here: ----- >>>> https://www.dropbox.com/sh/frvxgnb1qc2o87e/AAAMcVJTEofl-qbGX4PjbpCja
As far as I can tell from the photos, they are all sedimentary rocks, some with veins (probably calcite or quartz), some with recent holes made by burrowing creatures, perhaps bivalves (see http://www.museum.zoo.cam.ac.uk/bivalve.molluscs/lifestyles.of.bivalve.molluscs/bivalves.that.bore/).
Being loose on the beach, we can't be sure if they came from local rock or from much farther away (possibly transported into the area by rivers and/or glaciers).
Is the sedimentary rock all the same or is it possible to say what sort it is? (i.e. is there somewhere on that will allow me to ID the rock types?)
...Not from these photos.
To properly ID a sedimentary rock, one would make thin sections and examine them under a petrological microscope using plane- and cross-polarized light to ID the minerals and see some aspects of the textures. That would enable the rock to be IDd as limestone, perhaps, if there was a large percentage of calcite/aragonite or other calcium carbonate minerals. But the names of rocks are derived from several aspects, but primarily mineralogy, grain size and sedimentary structures. For instance a rock with large rounded clasts would be a conglomerate irrespective of whether it was composed mainly of carbonates or silicates. Similarly, a rock composed of sand-sized particles and showing narrow bedding might be called a laminated arenite. Colour can be used in naming rocks, eg. red sandstone, but that would be more of a descriptive embellishment that part of the ID. If, however, we knew the redness was due to iron minerals, it might be IDd as a ferruginous sandstone.
Where names of rocks appear in the names of stratigraphic units, something like 'Red Sandstone Member' would be acceptable, but stratigraphy is another story.
If you had not put the location were you found them I would have put 'my next weeks wage'? on them comming from the Holderness coast.
Once in a while you find a fossil, usually an ammonite called Eleganticeras elegantulum in a 'cannon ball' that leaks oil? (fossil fuel?) into the surrounding matrix, it actually smells of Diesel.
The ammonite in the sedimentry rock gives you an approx date of the matrix, Upper Lias, Lower Jurassic, can you see a fossil in your specimens hpcc1234.
Very very similar/same to the material that is found on the East Yorkshire beaches.
I can't see one - did you think there was one there?
No I cannot see one but it only takes a a hint of something in the rock, ie the side of a shell or shape of the matrix - anything to give a better idea of the rocks age.