siteseer Posted September 27, 2020 Share Posted September 27, 2020 On 10/19/2019 at 6:16 PM, FossilsAnonymous said: I love the “firezone layer” colors. Is it a lot of iron oxide in a bed or something? It's hard to say. Because that orange-red color is rather rare in the fossil shark tooth world, I think it's more a lucky combination of minerals and the way groundwater washed over them in that area. It is also lucky that the teeth weren't discolored/bleached by groundwater at some point after they took on that coloring. 1 Link to comment Share on other sites More sharing options...
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