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Kindly help me identify this thing found in beach Chennai, India . Size would be just 1.5 cm in diameter..across maximum size. It's shelled and has something inside it. It make a small noise when it is shaked completely closed on all sides. It's hard surface ( but " fine" texture ) to touch.

  • $\begingroup$ Thanks for the edits. Could you explain what you mean by "fine"? It's not quite clear to me what you mean in this case. Thanks. $\endgroup$ Sep 12 '19 at 14:55
  • $\begingroup$ Did you ever find out was this was? We just found one in Florida. $\endgroup$
    – Jen
    Jul 11 '20 at 19:56
  • $\begingroup$ give us a cross section. describe the material, is it mineral or organic? is it an egg? google lens app will recognize a HD photo if there are other images of the same thing on google images. I just put that specific image through google lens and it returned "chennai, india"... $\endgroup$ Jul 12 '20 at 2:54

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