Word: copperizing
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...Timber, copper, iron...
...When the water evaporates through the leaves, the minerals it carried remain in the plant's tissues, eventually falling to the ground and becoming part of the humus on the surface. Geophysicists analyze this "biologically enriched" layer and the leaves of growing plants. Finnish geochemists found a rich copper-nickel deposit by examining the ashes of birch leaves...
Plants occasionally do the analyzing themselves. Many dissolved minerals are poison to some plants and healthy food to others. A certain wild pansy (Viola calaminaria, et zinci) thrives on the waste dumps of zinc mines where little else can survive. The presence of other plants points to copper, lead or petroleum...
Pakistan would begin its career with no cotton mills, jute mills, iron or steel works,† copper or iron mines. Jinnah hoped to compensate for this weakness with foreign support, might keep Pakistan a British dominion even if Hindu India declared complete independence...
...figure of a priest, or ruler, presiding over a circle of deities (see cut). To make it, the Mayan artist had labored with wooden bow drills, and smoothed his work down with abrasive sand. Carnegie Institution diggers found the breastplate and an assortment of gold-leaf ornaments, copper bells "and one alabaster vase amid the rotted bones in an ever-deepening series of graves...