GRD00GCS0
I-673
Rhyolite
Cenozoic › Paleogene › Oligocene
23.0
-
33.9
1
Ritter 154 › Cabinet 15 › Drawer G
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Rhyolite with flow bands. Minerals include topaz, spessartine, quartz, sanidine.
~30 Ma
-
Colorado
Ruby Mtn, Chaffee County
Latitude: 38.7°
Longitude: -106.1°