Pennington mine, Pontbriand, Thetford Mines, Les Appalaches RCM, Chaudière-Appalaches, Québec, Canada
An open pit 200m by 100m. It is full of water and closed off by a dam. It had been used by the National Mine as a reservoir. It was mined for asbestos between 1909 and 1923.
| Chrysotile|| Quartz|| 'Serpentine Group'|
3 entries listed. 2 valid minerals.
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GAUDARD, S. (1993) Voyages au coeur des Appalaches. Published by: Musée Minéralogique et Minier de la région de l’amiante, Thetford Mines, Québec, 117 p.
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Locality Updated: Dolyhyde Mine (Dolly Hyde Mine), Libertytown, Frederick Co., Maryland, USAFrom Bill Cordua, 11th Dec 2013 05:05:36