Bannisterite



This is the same specimen as shown in BNS2a, but here viewed from a different angle to better show the diverse orientation and tabular shape of the bannisterite grains.  The micaceous habit of the mineral is well shown near the center of the photo, where some of the grains are seen on edge.

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Bannisterite in broad, intergrown, tabular, dark brown crystals of micaceous habit

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Identifier: BNS2d
Locality: Franklin mine, Franklin
Specimen size: 9 x 8 x 6 cm
Photo credit: Earl R. Verbeek