TB87AL5: Alabandite crystal, highly profiled, practically a floater, with light contacts that conserve remains of Calcite matrix and formed by the dominant octahedron with the vertices truncated by the faces of the cube.
We will send the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region  Tanzania

Specimen size: 2.2 × 2.2 × 1.6 cm = 0.87” × 0.87” × 0.63”