GRD02QXS0
Calif 1272
Granodiorite
Unknown
None
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1
Ritter 154 › Cabinet 15 › Drawer O
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Probably typical of the main rock type here
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US-40 Donner Pass 8/99 approximately at bridge, overlook
Latitude: 39.3°
Longitude: -120.3°
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GRD02QXT0: Plag rich, biotite, hornblende, quartz, some opaques. Some biotite altering with chlorite.
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