I have found this stone on the surface of a ploughed field in Herefordshire. It is very strange and unlike anything I can find online. It is pale grey stone with a white wiggly random pattern of what looks like quartz, or a white stone. The line resembles a chain, and is slightly raised above the grey parts, as if the grey has worn away more. I would be really interested if anyone can identify how this pattern has formed or any information at all about this stone..
spill some vinegar on it and tell us if it bubbles a bit(like a very light fizz). Looks like a fossil of a Paleozoic bryozoan or a sponge, cant tell without a close look. We need something for scale in a picture. Dont know if this rock is 3 cm or 3 m . Scale is always important. Put something like a small ruler or a Euro in the picture
alcohol wont do squat. We're trying to see if its a carbonate rock and only acetic. or hydrochloric would work(I dont want to reccommend HCl to anyone who's not familiar with how it can burn you, therefore vinegar is the next best.
FORGET the alcohol.
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