GRD008YS0
I-333
Gabbro
Precambrian › Archean › Neoarchean
2500.0
-
2800.0
1
Ritter 154 › Cabinet 16 › Drawer C
-
Pyroxene-rich Hess p 75-81.
Age from DePaiki 1979
Stillwater Complex
Montana
Stillwater Complex, Lower Gabbro Zone, Benbow road
Latitude: 45.4°
Longitude: -109.8°
-
Note the sight alteration
2.5
plane
Large pyroxene crystal
2.5
crossed
-
scan
crossed
GRD008YT0: 80% pyroxene, 20% plagioclase (polysynthetic twinning) slightly altered. (C. Eichler)
N/A
N/A