| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Jersey > Biotite |
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| DESCRIPTION: | No. 51237 |
| Mineral: | Biotite |
| Locality: | Hibernia Mine, Shaft #9, Morris County, New Jersey |
| Description: | Thin cleavage of black biotite mica from one of the last iron mines in New Jersey. Ex. Peter B. Nalle (1923-2010) collection #576c; personally collected while supervising the mine closure in 1989 |
| Overall Size: | 9x8x0.3 cm |
| Crystals: | 9 cm |
| Archived: | For reference only |
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