Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Marcasite from
Saint-Eustache Quarry (Carrière et pavage Saint-Eustache; Mathers Quarry), Saint-Eustache, Deux-Montagnes RCM, Laurentides, Québec, Canada


Locality type:Quarry
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Saint-Eustache Quarry (Carrière et pavage Saint-Eustache; Mathers Quarry), Saint-Eustache, Deux-Montagnes RCM, Laurentides, Québec, Canada
Data Identifiers
Mindat Occurrence Record ID:533274
Long-form Identifier:1:3:533274:8
GUID (UUID V4):0
Nearest other occurrences of Marcasite
18.8km (11.7 miles) ⓘMiron Quarry, Montréal, Québec, Canada
20.4km (12.7 miles) ⓘFrancon quarry, Montréal, Québec, Canada
26.1km (16.2 miles) ⓘLafarge Montreal East quarry (Carrière Lafarge Montréal-Est; Francon Montréal-Est quarry; Canada Cement quarry), Montréal-Est, Montréal, Québec, Canada
41.7km (25.9 miles) ⓘDemix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada
41.9km (26.0 miles) ⓘDulude Quarry (DJL - Carrière Mont-Bruno), Mont Saint Bruno, Saint-Bruno-de-Montarville, Longueuil TE, Montérégie, Québec, Canada
43.9km (27.3 miles) ⓘMeloche quarry, Coteau-du-Lac, Vaudreuil-Soulanges RCM, Montérégie, Québec, Canada
45.0km (28.0 miles) ⓘSaint-Philippe Quarry (DJL Quarry), Saint-Philippe, Roussillon RCM, Montérégie, Québec, Canada
48.4km (30.1 miles) ⓘGalipeau quarry, Beauharnois-Salaberry RCM, Montérégie, Québec, Canada
49.5km (30.8 miles) ⓘTrudeau quarry, Sainte-Justine-de-Newton, Vaudreuil-Soulanges RCM, Montérégie, Québec, Canada
52.9km (32.9 miles) ⓘSainte-Clotilde-de-Châteauguay quarry (Marcil quarry), Sainte-Clotilde-de-Châteauguay, Les Jardins-de-Napierville RCM, Montérégie, Québec, Canada
References
Sabine (1983) & Horváth collection
 
and/or  
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