GRD000IS0
I-19
Diorite
Mesozoic › Cretaceous
65.5
-
145.5
1
Ritter 154 › Cabinet 15 › Drawer P
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Original label: Porphyritic banded gabbro/diorite. Faint layering/banding.
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-
California
Ramona
Latitude: 33.0°
Longitude: -116.9°
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-
2.5
plane
Polysynthetic twinning in plagioclase
2.5
crossed
-
scan
crossed
GRD000IT0: 65% Plag, 30% Hb, 5% Kspar (B(-) high 2V), trace chlorite, sphene. (J. Gee)
N/A
N/A