GRD01VES0
M-130
Slate
Precambrian › Proterozoic › Mesoproterozoic
1000.0
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1600.0
0
Ritter 154 › Cabinet 14 › Drawer F
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Fine grained purple slate with leach spots. Poorly developed slaty cleavage. Original description: Argillite, Crystal Spring formation.
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California
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