Geology/Expert Profile
Expertise
Mining and mineral exploration. Environmental issues.
Experience in the area
Over thirty years conducting environmental consulting firm combined with mineral exploration in Canada. Considerable experience with photo-geology
Organizations
GSA
Publications
Associated Content, Triond.com, Factoidz.com
Education/Credentials
BS Excelsior College, Albany NY
Average Ratings
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Recent Answers from John
2012-05-10 Obsidian:
Geologically it's impossible to find obsidian anywhere in Michigan, but a look alike is slag from the many blast furnaces in the area. Since you didn't tell me where in Michigan you found this stuff its
2012-04-17 Rock Identification (With Image):
The rock in question is mica schist a common rock in Maryland. If you look up Bedrock Map of Maryland on your web browser you will find a map of all the different rock types in Maryland. Gold has been
2012-04-16 blue/green rocks:
Your stone is most likely a glacial erratic carried to your location by the glacier. From its appearance it looks like it was brought down from far north of you from the Canadian Shield. Rocks of this
2012-04-06 Any idea what this yellow sustance is ?:
It looks like iron oxide variety limonite. The quartz looks like "bull quartz" the kind where you can find gold. Basically the Piedmont and the Blue Ridge Mountains are known gold producers. The first
2012-03-08 Sand Concretions:
Under the right conditions sedimentary rocks can form aggregates of sand, clay or other particles that are bound with a cementing mineral such as limestone or clay. It usually takes some type of seed
Answers by Expert:
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