| | Description | |
| Type Locality: | Jeffrey Mine (Jeffrey Quarry), Asbestos, Shipton Township, Richmond Co., Québec, Canada is the type locality for Jeffreyite | | Comments: | Occurs in ultrabasic, serpentinized rock. | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Min.Rec.:20(5):393. | | Data | |
| Mineral Data: | Click here to view Jeffreyite data | | Locality Data: | Click here to view Jeffrey Mine (Jeffrey Quarry), Asbestos, Shipton Township, Richmond Co., Québec, Canada |
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