GRD000MS0
I-23
Granodiorite
Mesozoic › Cretaceous
65.5
-
145.5
1
Ritter 154 › Cabinet 15 › Drawer O
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Original label: Tonalite (Q diorite).
-
-
California
Ramona
Latitude: 33.0°
Longitude: -116.9°
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Biotite and large plagioclase
2.5
plane
Biotite, small k-spar, and large plagioclase
2.5
crossed
-
scan
crossed
GRD000MT0: 40% Q, 40% Plag, 17% Kspar (microcline), 3% Biotite, trace Musc. (J. Gee)
N/A
N/A