GRD010WS0
W64-19a
Dolostone
Precambrian › Proterozoic › Neoproterozoic
542.0
-
1000.0
1
Ritter 154 › Cabinet 3 › Drawer C
pisoids,pisolite
Medium-sized pisoids composed of dark grey dolomite. W64-19a is distinct from W64-19. Original label: Pisolite dolomite. Beck Spring Fm., Pahrump Group. Late Precambrian. Float from wash. April 1964.
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California
1 mile southeast of Saratoga Springs, San Bernardino County
Latitude: 35.7°
Longitude: -116.4°
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Quartz core in a pisoid
2.5
plane
Quartz core in a pisoid
2.5
crossed
-
scan
crossed
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scan
plane
GRD010WT0: Medium-sized pisoids composed of dark grey dolomite. A few pisoids have subrounded quartz at the cores. Poorly preserved sparrite cement. (C. Eichler)
N/A
N/A