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"TWINING <br /> CONCRETE INSIGHT <br /> Morrison Quarry Phase II Rock Petrography Page 14 <br /> Figure 4.2b. Sample 3. Photograph showing overview of the polished cross-sectional surface of the sample. <br /> Red and blue dots show the orientation of the saw cuts used to prepare the sample. The yellow scale shows <br /> small and large divisions are in centimeters and inches,respectively. <br /> x <br /> r <br /> Figure 4.1c. Sample 3. Photograph showing detail of the polished surface. Red arrow indicates quartz. Blue <br /> arrows indicate biotite and muscovite grains exhibiting a well developed preferred orientation. Pink arrows <br /> indicate veins filled with a soft and friable mineral that displays an off-white to pale yellow-green and <br /> reddish-brown color. Scale shows millimeter increments. <br /> Report No. 237923.d 20 February 2023 <br />