Neal Yedlin to J.W.Grandy Caledonite: Vintage Micromount. This specimen is from the the Mammoth MIne’s Collins Vein. Specimen display face measures 2 cm. x 1.7 cm. Mounted by the late famous Neal Yedlin apparently on a very short pedestal in a typical vintage cardboard micromount case and acquired in 1973 by the late J. W. Grandy.