GRD026MS0
ERDC-29D-5(1)
Syenite
Unknown
None
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2
Ritter 154 › Cabinet 37 › Drawer F
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Cut slab measuring ~6x6x2 cm from the cut face. Coarse-grained crystalline. Abundant grey feldspar and greenish pyroxene. Billet and billet pieces.
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ERDC Dredge 29
Pacific Ocean
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N/A
Slide 1: Large plagioclase with ocsillatory zonation with a glomerocryst of amphibole, biotite, and opaques in the upper right corner
2.5
plane
Slide 1: Large plagioclase with ocsillatory zonation with a glomerocryst of amphibole, biotite, and opaques in the upper right corner
2.5
crossed
Slide 1
scan
crossed
Slide 2 (Scrap)
scan
crossed
GRD026MT0: Slide 1: 90% plagioclase (polysynthetic twinning and beautiful concentric oscillatory zonation), 8% fine-grained glomerocrysts of green and brown hornblende, 1% euhedral to anhedral biotite, 1% subhedral opaques (C. Eichler)
GRD026MT1: Slide 2 (scrap): 90% plagioclase (polysynthetic twinning and beautiful concentric oscillatory zonation), 8% fine-grained glomerocrysts of green and brown hornblende, 1% euhedral to anhedral biotite, 1% subhedral opaques (C. Eichler)
N/A
N/A