Re: Found while digging in sand by beach, What is it?

Date: Thu Feb 15 10:25:35 2007
Posted By: Simon Cochrane, Secondary School Teacher, Science, Cockburn High School
Area of science: Earth Sciences
ID: 1166635157.Es

Message:


I cannot answer this query without seeing a picture.But:
Anything that is buried in sand may be a concretion of some sort.   
Mineral bearing waters circulating through sediment deposit their 
minerals in a cavity. The cavity may be created by organic matter rotting 
away or metal oxidising. More than this I cannot say.
Sorry.
Simon Cochrane.

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