WSU Sample A-6

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Location from which sample was collected is unknown. Nonetheless, this sample appears to be a granodiorite or quartz monzonite depending upon the amount of quartz. Both whitish plagioclase and pale-pinkish potassium feldspar is present, with some larger phenocrysts of k-spar present in the sample. Pale grayish quartz is also present but perhaps in amounts not quite in the granodiorite range. Tabular hornblende and platy biotite are the primary mafic minerals in this sample.