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ZMIDTH <br /> Figure 4: Photomicrograph of Zinc #2 Cleaner Concentrate: Mainly liberated sphalerite, <br /> pyrite (with galena inclusions) and complex chalcopyrite/galena/pyrite. <br /> Sphalerite <br /> PyriteX' <br /> 4 ` <br /> Galena` <br /> bill: <br /> �t <br /> Chalcopyrite <br /> Page 11 of 15 <br />