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Geology/mysyerious rock


Kevin W wrote at 2013-04-23 03:30:54

Is this rock light?

Does it feel like plastic and look the part as well?

Oil boils up through cracks in the earth and deposits paraffin which hardens.

Maybe a Carbonado...

A black diamond from an asteroid impact?

I have one as well in Colorado.

No one can identify it.

It to cannot be scratched with a saw or a drill.


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Sean P Hulsman


I can answer general questions about geology including stratigraphy, geological history and various geological phenomena (volcanism, tectonics, etc.) I also have some knowledge of astronomy and weather / wind patterns.


In my undergraduate work in geology I studied under many well-published geological scientists. I have just begun my quest to be a science educator, however I have a sizable collection of resources and some course-related field experiences to draw from.

Currently re-developing educational / informational website: ( formerly

I received my B.A. in Geological Sciences from University at Buffalo in 2005. I currently teach High School Earth Science, and have my Ed.M. in Science Education.

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