Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Arrowheads and Stones

Name: Kaleb
Status: student
Grade: 6-8
Country: USA
Date: Spring 2012

When hunting for arrowheads on our farm we sometimes find what seems to be points or tools covered in limestone. The shape and size are the same as the ones we find made of flint or chart. Can flint artifacts become encased in limestone?

Not likely. Pieces of natural chert, or flint, are often in limestone or similar appearance. Those pieces may look like artifacts but are not. We can speculate that the natural appearance of those pieces of chert helped people figure out how to make tools of them, but that's only a guess.

J. Elliott

Click here to return to the General Topics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (, or at Argonne's Educational Programs

Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory