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Opal from
Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Classification
Species:Opal
Comments:Sky to dark blue opal coating quartz crystals.
Confirmation
Validity:Believed Valid
References
References:http://membres.lycos.fr/quebecminerals/tripbluequartz.html
Associated Minerals Based on Photo Data:
Siderite3 photos of Opal associated with Siderite at this locality.
Zircon2 photos of Opal associated with Zircon at this locality.
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Nearest other occurrences of Opal
19.5km (12.1 miles) A Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada
182.1km (113.1 miles) B Crown Point Center, Crown Point Township, Essex Co., New York, USA
224.4km (139.5 miles) C Palermo No. 1 Mine (Palermo No. 1 pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USA
230.1km (143.0 miles) D Middle Moat Mountain locality (Moat Mountain), Hale's Location, Carroll Co., New Hampshire, USA
233.3km (145.0 miles) E Government Pit (Government Gravel Pits), Albany, Carroll Co., New Hampshire, USA
Mineral and/or Locality  
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