GRD02BOS0
W63-16
Anorthosite
Precambrian › Proterozoic
542.0
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2500.0
0
Ritter 154 › Cabinet 16 › Drawer F
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Light grey-blue, euhedral plagioclase phenocrysts with interstitial pyroxene and magnetite (minor). Original label: Anorthosite.
Silver, L. T., et al. Precambrian Age Determinations in the Western San Gabriel Mountains, California.The Journal of Geology, vol. 71, no. 2, 1963, pp. 196,214.JSTOR, JSTOR, www.jstor.org/stable/30066152.
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California
South Gabriel Mountains
Latitude: 34.3°
Longitude: -117.7°
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