I can answer any general geology question (rocks, minerals, stratigraphy, geomorphology etc.). My expertise is in the geology of the Michigan Basin, PreCambrian, Paleozoic and Recent. I can answer questions concerning mining and petroleum exploration and production and the laws concerning those activities. I can also answer questions concerning stratigraphy of the Michigan Basin. I will also answer questions about mineral and rock collecting in the Basin. I won`t be able to answer many specific questions on hydrology, geophysics or geochemistry. I may be able to answer very general questions in those venues.
I have been working for the State of Michigan for 24 years as a Geologist and a Resource Analyst. I have experience with Subsurface Geology and Petroleum Geology, mining in Michigan, and Sand Dune Mining and Protection issues.
Michigan Basin Geological Society
Decade of North American Geology.
Bedrock Geology of Michigan
BS Wayne State University
| User | Date | K | C | T | P | Comments |
|---|---|---|---|---|---|---|
| Maureen | 11/07/09 | 10 | 10 | 10 | 10 | Thanks Bob! I am very happy it ..... |
| Steve | 10/27/09 | 10 | 10 | 10 | 10 | Many thanks. Very helpful. Steve |
| E | 10/07/09 | 10 | 10 | 10 | 10 | Thanks Bob, The thought of pumice or ..... |
| carol | 10/01/09 | 10 | 10 | 10 | 10 | many thanks Bob, for such an interesting ..... |
| Yousaph | 09/17/09 | 10 | 10 | 10 | 10 |
Hi Maureen, This is an easy one. Yes it is selenite. It looks like a piece of a selenite rose, perhaps from Mexico. That's a collection of selemite crystale. Here's a pretty good picture of a selenite
Hi Jacob, In order to get an idea of what you have I am going to need a picture. There are too many rocks that could fit your description. If you do send me a picture, with another question, make sure
Hi Sartaj, Good question. So far the only substance that we have that will cut a diamond is another diamond. They use diamond dust or grains to polish the surfaces after the diamond has been cleaved
Hi David, I'm really going to need to see a picture to get a better idea of what you have. Not too many rocks are magnetic and none I can think of have a web of green lines over it. Without seeing it
Hi Steve, Interesting question. All the water, or most of it, that is on the Earth today was here since the Earth cooled, around 4 billion years or so. When Earth was forming it was a molten mass but
Answers by Expert:

©2009 About.com, a part of The New York Times Company. All rights reserved.