Siegenite on Galena
West Fork Mine, Reynolds County
4.3 x 3.7 x 4.4 CM (miniature)
Rich growth of Siegenite crystals on Galena which is in cubes, modified cubes and octahedrons. Quite esthetic for this rare mineral (Cobalt Nickel Sulfide). Ex collections of Steven Chamberlain obtained from the Lendall Hill collection. Fine contrast and with many excellent display angles.
Bright, lustrous, colorful and incredibly well formed gem Garnet from the Jeffrey Mine. A tiny bit of Diopside matrix and a small side car crystal are the only additions. In fine condition as seen, a quite superb thumbnail with well defined striations and a glass-like look. Single complete and well isolated crystals of this size are especially desirable. There were never many of top quality when the quarry was working but now these are just never seen.
Uraninite -large cube
Cardiff U Mine, Wilberforce, Halliburton
8.8 x 6.2 x 5 CM (cabinet)
A large Fluorite and Calcite matrix with a very big (1.6CM) single cube of Uraninite well exposed on the top edge. This cube is a bit unusual as it shows some corner modifications. The Luster is moderate to dull as were most of the larger crystals from this area, and there is a crack visible from some angles but the crystal seems still quite solid. As this is a quite radioactive specie there are limits on shipping but we can make hand delivery to major shows or use a special courier (more expensive) for shipping. This locality has been reclaimed and there will never be more of these.
A super esthetic older piece from finds made more than 50 years ago (predating the famed Lees pocket). This is in flawless condition the cluster of Barites has fine steel blue color and contrasts with a yellowish Calcite matrix. In addition to the nice arrangement some of the Barite faces show a very unusual etching pattern seen in some photos here. Lots of visual impact for the size, the color is a bit richer than the more recent finds, all in all far better than "above average", an excellent old time Colorado specimen.
Dioptase very large crystal
3.1 x 1.3 x 1.2 CM (small miniature/ large thumbnail (toenail))
A fine large single prism composed of two main parallel crystals that are joining in a single shared termination. Super lustrous with brilliant color, in fine overall condition. The base has a few tiny adhering crystals that are not complete and it is possible to see the break where this was removed from the host mass of Dioptase where this grew. Aside from the matrix the main large crystal is in perfect undamaged condition. From finds a few years ago in the Kaokoveldt, large prisms like this were just not known from other locations. A choice example of this find
Stefanie Mine, Bad Blieburg, Gailitaier Alpen and Karnish Alpen
9.3 x 6.8 x 5.4 CM (cabinet)
A very well crystalized Wulfenite from the area of the original discovery of the specie (Bad Blieburg). The area mining began in the 1500s and was extensive, producing a wide variety of habits and occasionally some extraordinary pieces. The Stefanie mine was the last to close and quite famous as a productive locale. This piece is well above average, the crystals to over 1.3 CM and most show sharp edge and or corner modifications. In fine condition overall, however a very close inspection can find some tiny edge bruises that are not really noticeable in normal display. The color and luster are excellent and stronger in person. A choice older specimen.
A large block of matrix with sizable surfaces densley covered with interesting Phosphates, mostly Strengite balls and Leucophosphite but others are also present. From the remarkable mine at Teskov that has been a fine source of Phosphates. Ex. Dr. Petra Choce collection, this could be turned into many thumbnails or micro specimens but as is it offers many esthetic views under magnification.
Wulfenite with Mimetite
San Carlos Mine, Municipio de Maunuel Benavidas
4.7 x 3.3 x 3.2 CM (miniature)
Gem clear, sharp and glassy bright red Wulfenite from the new find (2017-18) at the San Carlos Mine. The Wulfenites are associated with small balls of Mimetite that are both yellow and Orange in color. The large main crystal is 1.5 CM diagonal and sits perfectly on the matrix. Some bits of adhering matrix and tiny contacts are noted but not significant, and there is no chipping or damage on any of the main crystals. The Wulfenites at San Carlos were mostly yellow and orange but a few reds were found, this is in person a super intense red color as fine as any top Red Cloud Wulfenite. The crystals are unusually transparent and have brilliant luster on the faces. Better in person.