GRD00XES0

S-36

Dolostone

Paleozoic › Ordovician
444.0 - 488.0

1

Ritter 154 › Cabinet 18 › Drawer H

fine grained,irregular laminations

dolomite, Joachim Fm., Ordovician

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Missouri
St. Louis
Latitude: 38.64°
Longitude: -90.22°

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General texture of the sample

5.0

plane

General texture of the sample

5.0

crossed

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scan

crossed

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scan

plane

GRD00XET0: Equigranular dolomite crystals with minor angular quartz. Trace opaques. Patches of interstitial silica as well as patches of coarse spar. Moderate porosity. (C. Eichler)

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