| Locality type: | Mine |
| Classification |
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| Species: | Gypsum |
| Formula: | CaSO4 · 2H2O |
| Confirmation |
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| Validity: | Believed Valid |
| References |
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| References: | GSC misc. report 39 |
| Data |
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| Mineral Data: | Click here to view Gypsum data |
| Locality Data: | Click here to view MacDonald Mine, Monteagle Township, Hastings County, Ontario, Canada |
| Nearest other occurrences of Gypsum |
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| 13.1km (8.1 miles) | | ⓘHighway 28 East tourmaline occurrence, Dungannon Township, Hastings County, Ontario, Canada |
| 18.1km (11.3 miles) | | ⓘMadawaska Mine (Faraday Mine), Faraday Township, Hastings County, Ontario, Canada |
| 25.3km (15.7 miles) | | ⓘBicroft Mine (Centre Lake Mine), Cardiff Township, Haliburton County, Ontario, Canada |
| 35.7km (22.2 miles) | | ⓘDesmont Mine (Homer Yellowknife prospect), Monmouth Township, Haliburton County, Ontario, Canada |
| 67.1km (41.7 miles) | | ⓘKeyfortmore mine, Gratton Township, Renfrew County, Ontario, Canada |
| 74.0km (46.0 miles) | | ⓘCanadian Sulphur Mine (Wellington), Madoc Township, Madoc Area, Hastings County, Ontario, Canada |
| 77.5km (48.2 miles) | | ⓘMarmoraton Mine, Marmora Township, Hastings County, Ontario, Canada |