GRD025QS0
ERDC-27D-5
Serpentinite
Unknown
None
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1
Ritter 154 › Cabinet 37 › Drawer E
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Two cut pieces measuring ~6x6.5x6 cm and ~6x7x1.5 cm from the cut faces. One uncut sample measuring ~6x6x2 cm. Light and dark green crystalline interior with patchy Fe-Mn crust. Interior shows dark green spots in blue-green crystalline matrix. Billet and billet pieces. Original label: 21 September, 1975.
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ERDC Dredge 27
Pacific Ocean
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N/A
Abundant plagioclase with pyroexene (blue) and serpentine (brown and green)
2.5
plane
Abundant plagioclase with pyroexene (blue) and serpentine (brown and green)
2.5
crossed
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scan
crossed
GRD025QT0: 50% plagioclase (polysynthetic twinning); 25% pyroxene; 25% serpentine; tension cracks throughout sample; Thin section is carbon-coated (C. Eichler)
N/A
N/A