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| Description | |
|---|---|
| Quality of samples: | Rock forming mineral/non-crystalline/little interest for collectors.(##) |
| Confirmation | |
| Validity: | Believed Valid |
| References | |
| References: | Min Rec (1978) 9:235-242 |
| Data | |
| Mineral Data: | Click here to view Cummingtonite data |
| Locality Data: | Click here to view Chester Emery Mines, Chester, Hampden Co., Massachusetts, USA |