Mathilda_f's picture

What is this?

Observed: 31st March 2013 By: Mathilda_f

I found this fossil like stone on my grandad's driveway. My uncle Harry who knows a lot about nature, said it might be a fossil and to ask on ispot to see if he was right.
The fossil like pebble would have been maybe 3cm long, but its broken which is why you can see what is inside.
The pebble breaks easily around the object inside. Inside there is white oval ring around a purple coloured centre. Can someone tell me what it is please?
Mathilda aged 6

  • mudstone concretion
    Confidence: It's likely to be this, but I can't be certain.
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