Title | Bijiki Schist (grunerite-magnetite rock) from Michigamme, Michigan |
Description | This rather unusual rock from Michigamme, Michigan, is a very fine grained schist. The top surface is mostly black-green fine grained grunerite (Fe-amphibole); beneath it is a layer of fine grained black magnetite. The sample is 9.5 cm across. |
Chronostratigraphy | Precambrian |
Lithostratigraphy | Bijiki schist |
Location | USA ▹ Michigan. Near Michigamme. Lake Superior iron ore. |
Photographer | Mike Davis. 2001-04-26. |
Collection | Ward’s University Rock Collection #100. |
Key words | grunerite, magnetite, Bijiki Schist, Michigan |
Tech details | 874 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera, 60mm AF Nikon micro lens. |
GeoDIL number | 412 |
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