GRD0258S0
ERDC-24D-1A
Mafic
Unknown
None
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1
Ritter 154 › Cabinet 37 › Drawer E
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Dark green cut coarse-grained samples. Two pieces: ~5x4x4 cm and ~4x3x2 cm from the cut face. Large feldspar in hand sample. Billet pieces. Original label: 21 September, 1975.
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ERDC Dredge 24
Pacific Ocean
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N/A
Idocrase? crystal surrounded by feldspar
2.5
plane
Idocrase? crystal surrounded by feldspar
2.5
crossed
-
scan
crossed
GRD0258T0: Mostly composed of large potassium feldspar (tartan twinning) and plagioclase (polysynthetic and albite twinning), some crystals are highly fractured, minor amount of pyroxene, small crystal of idocrase (pink to green pleochroic, 2nd order pink)?, Thin section is carbon-coated. (C. Eichler)
N/A
N/A