GRD00G9S1
I-670_S1
Pumice
Cenozoic › Quaternary › Pleistocene › Calabrian
0.01
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1.8
1
Ritter 154 › Cabinet 15 › Drawer J
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Pumice from 15.5 ka explosive eruption at bottom of Lake Bonneville
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Utah
Pahvant Butte in Black Rock Desert, Millard County
Latitude: 39.1°
Longitude: -112.5°
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Clear groundmass glass
5.0
plane
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scan
crossed
GRD00G9T0: Aphyric (C. Eichler)
N/A
N/A