Geology you can hold in your hand.
Mahantango Formation, Trinity Church site, Fort Valley, Virginia.
Pliocene scallop from the Yorktown Formation.
Plagioclase-rich anorthosite in a cobble. Shows a fair amount of weathering as well as nice reaction rims.
This is the obverse of this sample:
Another view of this sample: gigapan.com/gigapans/191903
Snowball Earth deposits from Islay.
Other side of this sample:
Slaty cleavage is variably developed in strata of the rhythmite portion of the Neoproterozoic Konnarock Formation.
Example of a sandstone with cross-bedding. Here's the flip side of the sample: gigapan.com/gigapans/186975
Example of a sandstone with cross-bedding. Here's the flip side of the sample: gigapan.com/gigapans/186976
Medium-sized sample of Neoproterozoic tillite from Islay's eastern shore.
Flip the sample over here:
Fossil "crinklies" from 3.22 Ga.
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