GRD0436S0
Sy-1
Monzonite
Precambrian › Proterozoic › Mesoproterozoic › Calymmian
1400.0
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1600.0
0
Ritter 154 › Cabinet 15 › Drawer E
Monzosyenite
Monzosyenite. Part of Sybille intrusion. Perthitic black K-spar, plagioclase, augite, orthopyroxene, inverted pigeonite, fayalitic olivine, and ilmenite. Dark K-spar color due to numerous oxide inclusions.
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Wyoming
Laramie, North side Highway 34, Wyoming
Latitude: 41.73383°
Longitude: -105.44161°
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