Plant fossils in the Pennsylvanian-aged Allegheny Formation, collected from a roadcut along Corridor H northwest of Moorefield, WV.
Three specimens of obsidian (volcanic glass).
Quaternary-aged porphyritic andesite from the Kibo summit of Mt. Kilimanjaro.
Sample collected by Sarah Yun.
Sand from Zatoka, Odessa Oblast, Ukraine (Затока, Одеська область, Україна).
Collected by Glib Shpychka and Ira Orlyuk, August 2014.
Lineated granodiorite from the Ordivician-aged Columbia pluton.
Contact between unfaulted Devonian-age Helderberg limestone and fault breccia.
Collection location unknown. But nice texture, eh?
A rare discomycete growing on decayed Prunus spinosa bark and wood..
Nice porphryoblasts (almandine garnet in biotite schist).
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