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A new high-grade vein system has been discovered in hole MEC-2 at the ME target with assay results as follows: 0.65 m @ 534.0 g/t gold from 274.5 m downhole and 0.90 m @ 47.2 g/t gold from 291.8 m ...
ZME Science on MSN1h
No Mercury, No Cyanide: This is the Safest and Greenest Way to Recover Gold from E-wasteA pool cleaner and a spongy polymer can turn used and discarded electronic items into a treasure trove of gold.
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