GRD0259S0
ERDC-24D-1B
Basalt
Unknown
None
-
3
Ritter 154 › Cabinet 37 › Drawer E
Porphyritic
Two small (~4x3x2 cm) cut dark green coarse-grained samples. Large purple feldspar and small white veins in hand sample. Two other small (~5x3x4 cm on cut face) samples with green feldspar crystals in fine-grained blue matrix. Billet and billet pieces. Original label: 21 September, 1975.
-
ERDC Dredge 24
Pacific Ocean
-
N/A
Two circles of carbonate in Slide 1
2.5
plane
Two circles of carbonate
2.5
crossed
Very large feldspar in matrix of microphenocrysts in Slide 1
2.5
plane
Very large feldspar in matrix of microphenocrysts
2.5
crossed
Slide 1
scan
crossed
Slide 2
scan
crossed
Set B Slide 1
scan
crossed
GRD0259T0: Slide 1: Very large feldspars (some with little to no twinning, others with polysynthetic and tartan twinning) in a matrix of feldspar microphenocrysts, occasional carbonate circles (C. Eichler)
GRD0259T1: Slide 2: Very large feldspars (some with little to no twinning, others with polysynthetic and tartan twinning) in a matrix of feldspar microphenocrysts, occasional carbonate circles; some small carbonate veins; edges are polished thin (C. Eichler)
GRD0259T2: Set B Slide 1: Very large feldspars (some with little to no twinning, others with polysynthetic and tartan twinning) in a matrix of feldspar microphenocrysts. Polished thin on the edges, corner of slide broken off. (C. Eichler)
N/A
N/A