GRD02BPS0
110-G26A
Sandstone
Unknown
None
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4
Ritter 154 › Cabinet 17 › Drawer G
fine-grained
Fine-grained sandstone. Multiple thin sections. The thins sections have slightly different crystal abundances.
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GRD02BPT0: General texture of the sample
5.0
plane
GRD02BPT0: General texture of the sample
5.0
crossed
GRD02BPT0
scan
crossed
GRD02BPT1
scan
crossed
GRD02BPT2
scan
crossed
GRD02BPT3
scan
crossed
GRD02BPT0: Slide 1. 75% quartz. 10% opaque, 10% mica, 5% plagioclase (polysythetic twinning). Slight bedding visible in the opaques. (C. Eichler)
GRD02BPT1: Slide 2: 80% quartz. 10% opaques. 5% mica. 5% plagioclase (polysynthetic twinning). Minor amount of potassium feldspar (tartan twinning). (C. Eichler)
GRD02BPT2: Slide 3: 75% quartz, 5% plagioclase (polysynthetic twinning), 5% mica, 3% opaque. (C. Eichler)
GRD02BPT3: Slide 4: 75% quartz. 10% opaque, 10% mica, 5% plagioclase (polysynthetic twinning). (C. Eichler)
N/A
N/A