|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Jersey > Biotite
|Hibernia Mine, Shaft #9, Morris County, New Jersey
|Thin cleavage of black biotite mica from one of the last iron mines in New Jersey. Ex. Peter B. Nalle (1923-2010) collection #576a; personally collected while supervising the mine closure in 1989
|For reference only
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