Dore bar

Dore bar

Major gold mines process ore at the site of the mine, creating a low-purity gold metal. This metal is poured into dore bars, which are then transported to refineries for further purification. Dore bars sometimes weigh as much as 25 kg, twice the size of a standard London Good Delivery bar.

Associated Industry Codes

According the the United States Census Bureau [http://www.census.gov/] , the creation of dore bars is conducted at establishments engaged either in "Gold Ore Mining" (NAICS Code 212221 [http://www.census.gov/epcd/naics02/def/ND212221.HTM] ),or "Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum)" (NAICS Code 331419) [http://www.census.gov/epcd/naics02/def/ND331419.HTM] .

Derivation of the Term

The term likely derives from French or Spanish. In each language, the verb "doré" means to gild or make golden. [http://www.wordreference.com/fren/dor%C3%A9]

References

* [http://www.gold.org/pr_archive/html/bars/Categ.htm#Dore Dore bar]

ee also

* Gold extraction
* Gold bar
* Ore genesis
* Gold mining


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