GRD008MS0
I-321
Quartzofeldspathic
Precambrian › Archean › Neoarchean
2500.0
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2800.0
1
Ritter 154 › Cabinet 14 › Drawer N
fine-grained
Small cut sample. Original label: Hess p.52-55 Cordierite: Hypersthene: Quartz: Hornfels.
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Stillwater Complex
Montana
Stillwater Complex, just below contact ridge above Benbow Mine
Latitude: 45.4°
Longitude: -109.8°
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scan
crossed
GRD008MT0: Mainly composed of quartz and plagioclase (albite twinning); abundant cordierite (pleochroic brown to blue; heavily fractured); anhedral opaque oxides (C. Eichler)
N/A
N/A