Knowledgebase

I have a rock. When I scr... #554682

Asked April 21, 2019, 12:37 PM EDT

I have a rock. When I scrape it, whitish greyish color shows. I don't know if this is rare or just another boring old rock

Wayne County Michigan

Expert Response

Nice river rounded cobble.  I suspect it's either limestone or dolomite, based on your images.  Michigan has some amazing geology.  Attached are two documents I found that show Wayne County.  They are published by the Department of Natural Resources in Michigan and Wayne State University.  The DNR would be a good resource to ask further questions about your rock.  https://wmich.edu/sites/default/files/attachments/u263/2014/1987_Bedrock_Geology_Map.pdf

https://www.michigan.gov/documents/deq/GIMDL-RI03_362876_7.pdf


It's a pretty rock!

An Ask Extension Expert Replied April 24, 2019, 8:18 PM EDT

Loading ...