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It seemed for a while that copper was going to replace the buffed aluminum that replaced gold and Koonsian candy-coating as the eye-rollingly ostensibly critically-legitimate wealth-denoter in art, trends toward making the minerals-backing-art-curenncy-trope less obvious, every gallery had at least one artist nailing copper to a wall, techno-circuitry or Detroit detritus, and so interesting to see here the austerity of conceptual art's bureaucratic grey moving too towards texts pre-yellowed, a warm beige, interior design's highest selling color.