| Locality type: | Tunnel |
| Classification |
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| Species: | Gypsum |
| Formula: | CaSO4 · 2H2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Gypsum data |
| Locality Data: | Click here to view Canadian National Railway tunnel, Mont Royal, Montréal, Québec, Canada |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 697304 |
| Long-form Identifier: | 1:3:697304:9 |
| GUID (UUID V4): | dcc2b862-0157-4e12-8ea9-c54eeb7adec9 |
| Nearest other occurrences of Gypsum |
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| 6.4km (4.0 miles) | ⓘFrancon quarry, Montréal, Québec, Canada |
| 24.1km (15.0 miles) | ⓘDulude Quarry (DJL - Carrière Mont-Bruno), Mont Saint Bruno, Saint-Bruno-de-Montarville, Longueuil TE, Montérégie, Québec, Canada |
| 28.3km (17.6 miles) | ⓘDemix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada |
| 38.6km (24.0 miles) | ⓘ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 |
| 48.8km (30.3 miles) | ⓘBauval Quarry, Salaberry-De-Valleyfield, Beauharnois-Salaberry RCM, Montérégie, Québec, Canada |
| 64.1km (39.8 miles) | ⓘTrudeau quarry, Sainte-Justine-de-Newton, Vaudreuil-Soulanges RCM, Montérégie, Québec, Canada |
| 89.9km (55.9 miles) | ⓘSaint-François quarry, Saint-Germain-de-Grantham, Drummond RCM, Centre-du-Québec, Québec, Canada |
| 91.2km (56.7 miles) | ⓘChateaugay iron mines, Lyon Mountain, Clinton County, New York, USA |
| References |
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