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Franconia, Grafton Co., New Hampshire, USA

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Latitude & Longitude (WGS84): 44° 13' 38'' North , 71° 44' 54'' West
Latitude & Longitude (decimal): 44.2272222222, -71.7483333333

Franconia is a town, incorporated in 1772.

The danaite variety of arsenopyrite [cobaltoan arsenopyrite] was first described from a site in the town of Franconia - either the Copper Mine Brook Mine or the Peckett Mine. Which of these two sites is the actual type locality is uncertain, as records only indicate "Franconia." But it should be recognized that it is a locality in Franconia which is the type locality, not the town itself.

Mineral List

Mineral list contains entries from the region specified including sub-localities

23 valid minerals.

Localities in this Region

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

External Links Danaite crystal figure (1854)

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