Hill Annex Mine Fossil GalleryFossils From the Cretaceous Era Coleraine Formation in Calumet, Minnesota |
06JUL2019 #1 |
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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 but I try to keep the tilt to a minimum for the photos. However for this one I made no attempt to position it as the rock split in half just from rinsing it with water. Fortunately none of the scale appears to be lost.