| Locality type: | Quarry |
| Classification |
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| Species: | 'Pyrochlore Group' (not an IMA approved species) |
| Formula: | A2Nb2(O,OH)6Z |
| Habit: | octahedral |
| Colour: | brown, orange, yellow |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Aegirine | 32 |
| Albite | 14 |
| Genthelvite | 9 |
| Rhodochrosite | 7 |
| Catapleiite | 5 |
| Nenadkevichite | 4 |
| Polylithionite | 3 |
| Rutile | 2 |
| Leifite Group | 2 |
| Bastnäsite-(Ce) | 2 |
| Calcite | 2 |
| Rémondite-(Ce) | 2 |
| Sphalerite | 2 |
| Calcioancylite-(Ce) | 2 |
| Hingganite-(Y) | 1 |
| Rhabdophane-(Ce) | 1 |
| Mica Group | 1 |
| Data |
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| Mineral Data: | Click here to view Pyrochlore Group 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 |
| Photo Gallery | View Gallery (26 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 9108 |
| Long-form Identifier: | 1:3:9108:4 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Pyrochlore Group |
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| 36.2km (22.5 miles) | ⓘFrancon quarry, Montréal, Québec, Canada |
| 69.6km (43.2 miles) | ⓘSt Lawrence Columbium Mine, Oka, Deux-Montagnes RCM, Laurentides, Québec, Canada |
| 70.9km (44.0 miles) | ⓘBond zone, Oka, Deux-Montagnes RCM, Laurentides, Québec, Canada |
| 71.0km (44.1 miles) | ⓘManny zone, Oka, Deux-Montagnes RCM, Laurentides, Québec, Canada |
| 92.8km (57.6 miles) | ⓘSaint-André carbonatite complex, Saint-André-d'Argenteuil, Argenteuil RCM, Laurentides, Québec, Canada |
| References |
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Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada