AboutC. Robert Reszka, Jr. Expertise 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.
Experience 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.
Organizations Michigan Basin Geological Society
Publications Decade of North American Geology.
Bedrock Geology of Michigan
Can you tell me what this rock is? I've never seen one on any of the rough rock sites yet I have collected many of them. They polish nicely when they are tumbled with quartz and agates so they are about the same in hardness as them.
I'm very curious to know.
Answer Hi Daryl,
Nice rock you have there. You don't mention where you are from but I am pretty sure you have a type of agate. It looks like it may be from one the south western states like New Mexico, or Nevada, or maybe even Mexico itself. There are lots of colorful agates from around there. But you can find very colorful agates from many places so I can't be sure of the location.
There are MANY types of agates; thousands. The following sites give a good definition of what an agate is and some good examples.
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