dore alloy

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• Doré (disambiguation) — Doré may refer to: Doré bullion, a semi pure alloy of gold and silver Lake Doré, a freshwater lake People with the surname Doré: André Doré (born 1958), former professional ice hockey player Daniel Doré (born 1970), former professional ice hockey …   Wikipedia

• Doré bullion — is unrefined silver that contains a variable but usually appreciable percentage of gold. It is a common article of commerce and trade, of interest mainly to miners, smelters, and refiners. Categories: SilverAlloy stubs …   Wikipedia

• Doré bar — A doré bar is a semi pure alloy of gold and silver, usually created at the site of a mine. It is then transported to a refinery for further purification. The proportions of silver and gold can vary widely. Doré bars weigh as much as 25 kg.… …   Wikipedia

• List of alloys — This is a list of named alloys grouped alphabetically by base metal. Within these headings the alloys are also grouped alphabetically. Some of the main alloying elements are optionally listed after the alloy names. Contents 1 Alloys of aluminium… …   Wikipedia

• History of Sheffield — The history of Sheffield, a city in South Yorkshire, England, can be traced back to the founding of a settlement in a clearing beside the River Sheaf in the second half of the 1st millennium AD.Vickers, Old Sheffield Town , part 1] The area had… …   Wikipedia

• Sheffield — For other uses, see Sheffield (disambiguation). City of Sheffield   City Metropolitan borough   Top left …   Wikipedia

• ormolu — /awr meuh looh /, n. 1. Also called mosaic gold. an alloy of copper and zinc used to imitate gold. 2. Also called bronze doré, gilt bronze. gilded metal, esp. cast brass or bronze gilded over fire with an amalgam of gold and mercury, used for… …   Universalium

• silver processing — Introduction       preparation of the ore for use in various products.       Silver has long been valued for its white metallic lustre, its ability to be readily worked, and its resistance to the corrosive effects of moisture and oxygen. The… …   Universalium

• do|ré — «d RAY», adjective, noun. –adj. 1. golden; gilded: »a steel and bronze doré inkstand. 2. containing gold: »doré metal. Doré bullion is silver that contains small parts of gold. –n. an alloy of silver and gold. ╂[< French] …   Useful english dictionary

• assaying — In chemical analysis, the process of determining proportions of metal, particularly precious metal, in ores and metallurgical products. The most important assaying technique grew largely out of the experiments of the ancient alchemists and… …   Universalium

• Metallurgical assay — A 19th century assay laboratory in Tombstone Courthouse State Historic Park, Arizona …   Wikipedia