Black Rock Mine, Hotazel, Kuruman, Kalahari Fields, South Africa
Small Cabinet, 9.5 x 7.5 x 6.2 cm
I have only seen a handful of these strange specimens over the years, reportedly mined in the 1970s at Black Rock. This is a very aesthetic spray of upright crystals shooting out of matrix of pastel-pink kutnahorite, where it seems that a later generation of elongated kutnahorite crystals has been altered (pseudomorphed) into goethite. The contrasting shapes and colors, and the 3-dimensionality, make this a really interesting piece, visually. Ex Marshall Sussman Namibian collection. Joe Budd photos.
Caland pit, Atikokan, Hutchinson Township, Ontario, Canada
Miniature, 3.5 x 3 x 2 cm
A MAJOR locality Manganite that has unusually blocky crystals for the locale up to 1.7 cm, with razor-sharp edges and excellent luster. The striations, slight overlap, and the way that these sit on the Goethite matrix make this exceptionally aesthetic as a whole, for a black mineral. Certainly one of the best Manganites I have seen from this well-known location, it has been in Marty's private collection for over a decade since a big find here in the 1990s
A botryoidal crust of brownish-black goethite is host to a large, aesthetic cluster of lustrous and translucent, bi-colored manganoan adamite crystals, to a very LARGE SIZE of 3.5 cm in length. The lower 80% of the crystals are ivory-colored while the gemmier terminations exhibit a lovely, light lavender color. This is one of the largest clusters of manganoan adamite I have seen from the incredible finds at Mina Ojuela in 1981-2. Although the color is not intense, it is present, and in this case it is present as an accent to the overall form and richness of the piece, lending purple highlights to unusual white crystals. The crystals are sinuous and interesting, in and of their own. The contrast of the curving crystals which are sharply pointed on either end, with the rolling black hills of goethite matrix, really adds a lot to the specimen
Ex Dalton and Consie Prince collection. Sold by their daughter in a private auction to collector Dave Stoudt bidding against major private collector buyers and a dealership in 2005. Joe Budd Photos.
Thumbnail – Maximum 3.0 cm
Toenail – A “gut feeling” but often overlaps between a large thumbnail and a small miniature
Miniature – Maximum 5.0 cm
Small Cabinet – Maximum 9.4 cm
Cabinet – Maximum 18.0 cm
Large Cabinet – Over 18.0 cm
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