GRD02AHS0
M-54
Mafic
Precambrian
542.0
-
3850.0
1
Ritter 154 › Cabinet 14 › Drawer H
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Olivine metadiabase. Medium-grained plagioclase-pyroxene-garnet-amphibole (trace)-pyrite (trace)-olivine (relict). Original label: Metadiabase.
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New York
Elizabethtown, Eastern Adirondacks
Latitude: 44.2°
Longitude: -73.6°
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General texture of the sample. Pink is garnet, and colorless is plagioclase and K-spar.
2.5
plane
General texture of the sample
2.5
crossed
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scan
crossed
GRD02AHT0: 35% plagioclase, 25% pyroxene, 15% K-spar, 15% garnet, 5% opaques. Trace quartz? (C. Eichler)
N/A
Gasparik_GSAB_1980
Gasparik, T., 1980, Geology of the Precambrian rocks between Elizabeth and Mineville, eastern Adirondacks, New York: Geological Society of America Bulletin, v. 91, no. 2, p. 78-88.