These star-shaped objects, resembling snow flakes, are actually a type of fossil, commonly found in southern and eastern Warwickshire. These particular examples are from Napton-on-the-Hill, where the local Jurassic clay, sandstone and ironstone bedrock is very rich in fossilised sea-creatures.
These fossils are just a few millimetres in diameter and are fragments of the mineralized stems of sea-creatures known as ‘crinoids‘. Resembling plants, crinoids are actually animals related to sea-urchins and starfish, and still occur in some modern seas.
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Good article. We have found lots of these in Napton!
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