sandstone - yellow-brown medium-grained non-marine Miocene sandstone - Unit of 5 student specimens
$ 4.20
This sandstone is Miocene in age, is moderately lithified, was deposited in a closed basin in a non-marine depositional environment. The orange color was caused by subaerial oxidation of iron. It is mapped as the Ridge Route Formation, part of the Ridge Basin Group.
The sand grains in these specimens are medium-grained and when rubbed off onto a sheet of paper, will look like sand to a student. It would be instructive to compare this sandstone with one is larger grained, with one that is cemented with calcium carbonate, and with different colored sandstones, as sandstone has great variety and a student should not see only one example.
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