|• Total||0.66 km2 (0.25 sq mi)|
(31 December 2010)
|• Density||325/km2 (840/sq mi)|
|Time zone||UTC+1 (CET)|
|• Summer (DST)||UTC+2 (CEST)|
Dannemora is the location of an important iron ore mine, the Dannemora mine, which formed the basis of the iron industry in Uppland. It provided the raw material for about 20 finery forges that produced bar iron for export.
In the early mid-19th century, numerous workers from this town emigrated to the United States, with some settling in upstate New York at the site of other iron mines. They named the community Dannemora, after their former home.
In England, iron produced from Dannemora ore was known as oregrounds iron, after the port town of Öregrund, from which it was shipped. Bar iron from these forges was considered the best raw material for producing blister steel by the cementation process, owing mainly to the extremely low levels of sulphur and phosphorus in the ores, and their relatively high manganese content.
The mine was closed down in 1992. With world market demand rising again, the feasibility of reopening the mine was investigated. The mine was re-opened in June 2012 in a ceremony performed by King Carl XVI Gustaf.
- "Tätorternas landareal, folkmängd och invånare per km2 2005 och 2010" (in Swedish). Statistics Sweden. 14 December 2011. Archived from the original on 27 January 2012. Retrieved 10 January 2012.
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