GRD029RS0
M-27
Relict Textures
Unknown
None
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1
Ritter 154 › Cabinet 14 › Drawer O
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Amphibolite with quartz vein and pyrite-rich layers. Sample is capped by chlorite-biotite schist. Original label: Metagreywake.
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Wyoming
Owl Creek Mountains
Latitude: 43.5°
Longitude: -108.5°
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Quartz and amphibole bands
2.5
plane
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2.5
crossed
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scan
crossed
GRD029RT0: Intervals of amphibole (hornblende) and quartz. Opaques throughout. Interstital feldspar. 45% amphibole, 40% quartz, 10% feldspar, 5% opaques. (C. Eichler)
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