A bizarre association, well-formed slightly translucent Cassiterites sitting on Quartz with a crude 5 cm Stibnite crystal along one edge. The question was recently asked if this is Stibnite or Bismuthinite, and we have not yet made an analysis. The Cassiterites have good luster and form, very three dimensional. Ex Shields Flynn collection, via Bert Ottens, I have never seen another of these. There is a matrix repair that is not visible.
From the now classic finds at Brumado, a very well-composed cluster of glassy deep green crystals. In fine condition with a few tiny flecks of adhering Quartz, otherwise this is all Uvite. Prior to these finds almost all known Uvite was black. There seems to be little to no new production now.
Jeffrey Mine, Asbestos
3.8 x 3.2 x 1.4 cm (miniature)
A bright, two sided plate that hosts several fine gem clear crystals. In excellent condition as seen, all the crystals are well-formed and isolated. A small version of the "front" has the uncommon white matrix of crystallized Prehnite that gives a fine contrast to the Garnets. Choice example that is a small version of the finest cabinet specimens that sell for huge sums.
Ferberite & Dolomite
Yaogangxian Mine, Yizhang County, Chenzhou Pref.
5.3 x 3.3 x 3.8 cm (cabinet)
Lustrous black Ferberite crystals with sharp terminations contrast with the snow white Dolomite crystals. A nicely composed cluster that looks great from many angles. All the main crystals are in fine condition, there is a contact on one lower side edge that is not seen on display.
An great old Tsumeb classic specimen. This is a milky-blue single crystal well-terminated but cleaved on the base as seen. A tiny bit of Malachite is seen on one edge, otherwise this is all bluish Anglesite. I am told that these were found only in the upper reaches of the first oxidized zone (the "green hill"). Not often available with such size and good luster.
Slightly frosted on some faces, sharp, clear and in fine condition, this old specimen is from 1960s vintage finds at Charcas. Selective frosting adds to the visual interest and the form is textbook perfect. The termination shows a nice effect with the selected areas outlining a central hexagon. Nothing quite like these Calcites has since been found.