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SANDSTONE #3 (detail) Lithic feldspathic wacke sandstone Go on to: #1 | #2 | #3 | #4 
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QFL Composition
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Description
Along this cut surface, wet with water, the sand grains stand out clearly. The black specks are lithic fragments; many of the white specks are feldspars (although some may be quartz or lithics). The grayer areas inbetween are quartz grains and matrix. Matrix becomes transparent when the rock is wet, so it is impossible to see here.The next image is closer still; the penny has not been moved between these two cut images so you are seeing the same portion of the rock in both. |
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