| Locality type: | Mine |
| Classification |
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| Species: | 'Chlorite Group' (not an IMA approved species) |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Chlorite Group data |
| Locality Data: | Click here to view Old Mass Mine, Mass City, Ontonagon County, Michigan, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 399717 |
| Long-form Identifier: | 1:3:399717:8 |
| GUID (UUID V4): | cc342c53-0d31-4449-b961-c84b5b431b11 |
| Nearest other occurrences of Chlorite Group |
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| 1.2km (0.7 miles) | ⓘEvergreen Series (Evergreen Lodes), Ontonagon County, Michigan, USA |
| 1.4km (0.9 miles) | ⓘMass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA |
| 2.5km (1.5 miles) | ⓘFlintsteel River Mine, Ontonagon County, Michigan, USA |
| 3.0km (1.9 miles) | ⓘFlintsteel Mine (Nassau Mine; Old Flintsteel Mine; Superior-Nassau Superior Mine), Mass City, Ontonagon County, Michigan, USA |
| 3.0km (1.9 miles) | ⓘAdventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA |
| 3.3km (2.0 miles) | ⓘLake Superior Mine, Ontonagon County, Michigan, USA |
| 4.6km (2.8 miles) | ⓘMichigan Mine, Rockland, Ontonagon County, Michigan, USA |
| 4.7km (2.9 miles) | ⓘToltec Mine, Mass City, Ontonagon County, Michigan, USA |
| 4.8km (3.0 miles) | ⓘRockland Mine, Rockland, Ontonagon County, Michigan, USA |
| 5.0km (3.1 miles) | ⓘSouth Lake Mine (Aztec Mine), Mass City, Ontonagon County, Michigan, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | the interior more or less completely as a porous mass having no definite structure. H. W. Remarks on...o repeat his description. It is a portion of the mass weighing 20 lbs,, found by Nordenskiold near Ovifak...News,42, 195).This mineral formed a nearly compact mass, with traces only of crystalline structure, of iron-grey...time, and after cooling the upper part of the fused mass was removed, leaving at the bottom an impure portion...cinnabar until the mass was on the point of solidifying. The upper portion of the cooled mass was alone taken |
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