The Element Copper


The Element Copper
  Copper Chemistry
Copper in Plants
  Uptake and Metabolism
Copper Deficiency in Plants
Copper Toxicity in Plants
Copper in the Soil
  Geological Distribution of Copper in Soils
  Copper Availability in Soils
Copper in Human and Animal Nutrition
  Dietary Sources of Copper
  Metabolism of Copper Forms
Copper and Human Health
  Copper Deficiency and Toxicity in Humans

Copper is one of the oldest known metals and is the 25th most abundant element in the Earth’s crust. The words ‘aes Cyprium’ appeared in Roman writings describing copper, to denote that much of the metal at the time came from Cyprus. Refinement of copper metal dates back to 5000 BC. The metal by itself is soft, but when mixed with zinc produces brass and when mixed with tin produces bronze. Copper is malleable, ductile, and a good conductor of electricity. In its natural state, it is a reddish solid with a bright metallic luster.