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- Dec 31, 2013
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Hello. I am just a novice interested in rocks. I have a couple of rocks I picked up from the mouth of the Bega River (not sure what they are: aphanitic, heavy, slightly magnetic and brown). They both show a strange formation as in the picture: a small split diamond shape enclosed by an oblong beak like dome. The rocks have no other accidents. Is this a fossil or a crystal formation of some kind?
Roderico
Roderico