GRD00QES0
110-Fe 6
Banded Iron Formation
Unknown
None
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1
Ritter 154 › Cabinet 17 › Drawer O
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Original label: Banded ironstone. Bulk matl: L-104-9 (Room 4645), 1946.
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Michigan
Puritan Mine, Ironwood
Latitude: 46.47°
Longitude: -90.09°
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Fe-rich layers
2.5
plane
Fe-rich layers
2.5
crossed
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scan
crossed
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scan
plane
GRD00QET0: Quartzite with interstital opaques. Some layers are more opaque than others. Largest layer is almost opaque-free. Corner is broken off the thin section. (C. Eichler)
N/A
N/A