GRD0257S0
ERDC-23D-1
Basalt
Unknown
None
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3
Ritter 154 › Cabinet 37 › Drawer E
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Dark green porphyritic basalt with abundant circular vesicles, some vesicles are filled-in with quartz or Fe-oxide minerals: Three large (~8x5x6 cm) samples. Dendritic oxide crystal growth on the exterior of one sample. Billet pieces. Original label: 21 September, 1975.
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ERDC Dredge 23
Pacific Ocean
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N/A
Large, ragged plagioclase with two carbonate spheres
2.5
plane
Large, ragged plagioclase with two carbonate spheres
2.5
crossed
Slide 1
scan
crossed
Slide 2
scan
crossed
Set B slide 1
scan
crossed
GRD0257T0: Slide 1: Abundant large plagioclase (polysynthetic twinning; some resorption and ragged crystal edges) in a matrix of finer plagioclase and pyroxene microcrysts; Circular carbonate (possibly the filled vesicles observed in the hand sample) (C. Eichler)
GRD0257T1: Slide 2: Abundant large plagioclase (polysynthetic twinning; some resorption and ragged crystal edges) in a matrix of finer plagioclase and pyroxene microcrysts; Circular carbonate (possibly the filled vesicles observed in the hand sample) (C. Eichler)
GRD0257T2: Edges polished too thin: Slide 3 (Set B): Abundant large plagioclase (polysynthetic twinning; some resorption and ragged crystal edges) in a matrix of finer plagioclase and pyroxene microcrysts; Circular carbonate (possibly the filled vesicles observed in the hand sample) (C. Eichler)
N/A
N/A