GRD02AIS0
M-199
Sil-bearing Schist
Precambrian
542.0
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3850.0
1
Ritter 154 › Cabinet 14 › Drawer R
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Large sample of magnetite-quartz-sillimanite schist.
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New York
Spruce Mountain, Adirondacks
Latitude: 43.22°
Longitude: -73.91°
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Pleochroic mineral is sillimanite, clear is quartz, and opaque is magnetite.
2.5
plane
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2.5
crossed
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scan
crossed
GRD02AIT0: 40% quartz, 40% magnetite, 15% sillimanite (J. Gee)
N/A
N/A