What type of rock?!

[Maxfuson]

Hello! New member here and I need some help in identifying the type of mineral this is.
Thanks!
Max

 

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[old digger]

Welcome to tnet!

It would help if you gave a general area (state) in which it was found. From what I can see, it looks similar to a Chert nodule.

 

[Maxfuson]

Thanks! I’m sorry, I found this rock in 1987 in the UK about 40 miles north of London laying in a farmers field. This particular field was absolutely load d with this type of stone, some smaller and some larger than the one I posted.
Thanks again,
Max

 

[Maxfuson]

So this chert nodule may be sedimentary rock from the Cretaceous period? Wow! Possibly formed in chalk?
Max

 

[ToddsPoint]

This is true flint formed in chalk beds. Beautiful high quality material that chips great. Nice piece. Gary