A highly attractive copper bar released in limited numbers in 2010. Each one is individually encapsulated to protect them. A new design incorporating a map of Australia on one side and multiple miniature maps on the other. They make for a fabulous gift to overseas friends. Unique in their design and very pleasing to look at. They even look great just propped up on the bookshelf as a curio for display. Worthy of both collection and display it is beautifully crafted. The high quality strike is the first thing that appeals about it. The bar is in mint condition. The bars are 1 ounce pure copper bullion running .999 fine.
Stamped text is: AUSTRALIAN COPPER BULLION
Copper is an essential trace element that is vital to the health of all living things (humans, plants, animals, and microorganisms). The human body normally contains copper at a level of about 1.4 to 2.1 mg for each kg of body mass.Copper is distributed widely in the body and occurs in liver, muscle and bone. Copper is transported in the bloodstream on aplasma protein called ceruloplasmin. When copper is first absorbed in the gut it is transported to the liver bound to albumin. Copper metabolism and excretion is controlled delivery of copper to the liver by ceruloplasmin, where it is excreted in bile.
Daily dietary standards for copper have been set by various health agencies around the world. Researchers specializing in the fields of microbiology, toxicology, nutrition, and health risk assessments are working together to define precise copper levels required for essentiality while avoiding deficient or excess copper intakes.
Copper Resource Page. Includes 12 PDF files detailing the material properties of various kinds of copper, as well as various guides and tools for the copper industry.
The Copper Development Association has an extensive site of properties and uses of copper; it also maintains a web site dedicated to brass, a copper alloy.
The Third Millennium Online page on Copper
The WebElements page on Copper