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�00 <br /> "TWINING <br /> CONCRETE INSIGHT <br /> Morrison Quarry Rock Petrography Page 33 <br /> � r r <br /> X, <br /> .40 <br /> `�.i.. <br /> • f <br /> r <br /> i y <br /> 1 y r <br /> (b) <br /> Figure 4.4f. Sample HDR-003 (53.0-53.6).Transmitted light photomicrograph of thin section showing detail of <br /> rock in(a) plane-polarized and (b) cross-polarized light. Red arrow indicates quartz. Orange arrows indicate <br /> calcite-filled vein.Blue arrows indicate biotite and muscovite(mica). <br /> Report No. 227893.d 22 November 2022 <br />