GRD000RS0
I-28
Rhyolite
Precambrian › Proterozoic › Mesoproterozoic
1000.0
-
1600.0
1
Ritter 154 › Cabinet 15 › Drawer F
resorption,altered
Original label: Rhyolite porphyry.
-
-
Missouri
Iron Mt, Ozarks
Latitude: 37.7°
Longitude: -90.6°
-
Embayed quartz
2.5
plane
Embayed quartz
2.5
crossed
-
scan
crossed
GRD000RT0: Fine-grained matrix, resorbed plagioclase (albite twinning), possible K-spar, resorbed and embayed quartz, altered (C. Eichler)
N/A
N/A