GRD02PYS0
Calif 1138
Andesite
Cenozoic › Quaternary › Holocene
0.0
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0.01
2
Ritter 154 › Cabinet 16 › Drawer B
Porphyritic
Porphyritic Andesite. Large plagioclase and small amphibole crystals in grey groundmass. Original label: Hypabyssal actually phyre. Vitrophyre.
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California
Deer Mountain, Inyo Crater, Inyo county
Latitude: 37.699°
Longitude: -119.012°