![](http://www.alamy.com/thumbs/6/2165A072-9C42-4D27-9A93-2ACE2C8BDC05/2DH8070.jpg)
tennantite metal, a metal alloy stronger than copper
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Keywords: age, alloy, blacksmith, bronze, collection, copper, copper-arsenic, crystal, gem, gemstone, geology, iron, kiln, metal, mineral, minerology, natural, ore, precious, refine, rock, sample, science, silicate, smelt, specimen, stone, sulfosalt, tennantite, tetrahedrite, weld, zinc