Hill Annex Mine Fossil GalleryFossils From the Cretaceous Era Coleraine Formation in Calumet, Minnesota |
05JUL2019 #1 |
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This scale was cracked and folded during burial it seems.
Part of the reason I look at the 3D surface view is to see how level I got the scale under the microscope.
Scale impressions are not completely flat, this one especially, but I try to keep the tilt to a minimum for the photos.