Category:Quartz in Ontario

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Radioactive quartz-pebble conglomerate (Matinenda Formation; Ontario)‎ (59 F)

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Radioactive quartz-pebble conglomerate (Matinenda Formation, Paleoproterozoic, ~2.3-2.48 Ga; Spine Road outcrop, Elliot Lake, Ontario, Canada) 20 (32776095087).jpg 4,000 × 3,000; 8.1 MB

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