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D06-77 - Arsentsumebite on Anglesite - $ 950 Tsumeb Mine, Namibia miniature, 4.5 x 4.0 x 2.4 cm
A significantly rich specimen just LOADED with more of this rare species than you normally would ever expect to see in one place! AND, its a beautiful, display-quality miniature besides. And green...Who could want more in an obscure rarity!?
GH17 - Arsentsumebite pseudo. after Mimetite - $ 1250 SOLD Tsumeb Mine, Namibia, Africa miniature, 5.6 x 4.3 x 2.9 cm ex. Dr. Gary Hansen
An exceptionally rare and rich, very old-time specimen! When I got it in the Hansen collection labelled as a pyro (but never checked by analysis), it had me puzzled. Pyromorphite is not reported in crystalline form of any quality from Tsumeb and this would have been a miraculous piece. Further study has confirmed it is actually arsentsumebite pseudomorph after mimetite, which makes more sense mineralogically as well as in terms of the crystal form present (which wasn't hexagonal). The piece is exceedingly rich, then, for this very rare species. Despite a few broken crystals, it is also very showy and displayable. Specimens of this type were reported to have been found in the upper oxidation zone , and so it most likely dates to 75 years or more in age. Significant and rare! Jus tnot a pyro...
MD-131118 - Beudantite, Arsentsumebite, Cerussite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia thumbnail, 2.9 x 2.4 x 2.0 cm.
2.9 x 2.4 x 2.0 cm. Super sharp, tabular and pseudohexagonal, olive-green beaudantite crystals RICHLY line a well-placed vug on matrix along with botryoidal, dark green arsentsumebite. The specimen is beautifully crowned with a glassy, cyclic-twinned cerussite crystal. This is a VERY FINE display piece for these rare species and nicely accented by a cerussite "jewel".
MD-155865 - Azurite, Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia miniature, 3.6 x 3.9 x 3.1 cm.
3.6 x 3.9 x 3.1 cm. Rich, apple green, arsentsumebite, a rare lead copper-arsenate-sulfate, contrasts incredibly with a few crystals of highly lustrous, deep, royal blue azurite, to 1.0 cm across. This is a notable old specimen, rare today, showing a classic association from Tsumeb and only Tsumeb. Mostly these were found in the early days of Tsumeb, early 1900s. Ex. Charlie Key.
MD-170567 - Azurite, Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia small cabinet, 6.8 x 4.2 x 3.5 cm.
6.8 x 4.2 x 3.5 cm. An OLD-TIME, dramatic and showy combination specimen from the famous and now-closed Tsumeb Mine. Lustrous and sharp, midnight-blue azurite crystals to 7 mm RICHLY line an elongate vug in gossan matrix, which is beautifully lined with sparkly, drusy, apple-green arsentsumebite microcrystals. Tsumeb is the Type Locality for this ULTRA-RARE lead copper arsenate, which is RARE, even at Tsumeb. This is a RICH specimen of arsentsumebite. Definitely old, from the upper oxidized levels of this very historic mine. Ex Rob Smith Collection.
MD-174056 - Azurite, Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia small cabinet, 6.6 x 4 x 2 cm.
6.6 x 4 x 2 cm. A fine specimen with lustrous azurite accented by green Arsentsumebite. Ex. Willy Israel Collection.
MD-174058 - Azurite, Cerussite, Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia small cabinet, 8.3 x 5.3 x 3.2 cm.
8.3 x 5.3 x 3.2 cm. A blue specimen with unusual platy azurite crystals to 1 cm richly covering the display face. It is associated with minor green Arsentsumebite which provides just a touch of accent and contrast and is a visually bright and showy specimen, not dark as are so many azurites. Ex. Willy Israel Collection.
MD-174136 - Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia miniature, 4.3 x 4.0 x 2.2 cm.
4.3 x 4.0 x 2.2 cm. Tufts and rosettes of the deep green of this rare lead, copper arsenate cover the specimen and cover as well some white crystals of anglesite. Ex. Willy Israel Collection.
MD-174207 - Azurite, Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia miniature, 3.7 x 3 x 2.5 cm.
3.7 x 3 x 2.5 cm. A specimen with shocking blue, deep azure crystals highlighted by bits of arsentsumebite. Clearly an older specimen from the first oxidation zones, perhaps from re-mining of the pillars from those old days. Ex. Willy Israel Collection.
MD-181548 - Arsentsumebite, Anglesite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia miniature, 4.5 x 4.0 x 2.4 cm.
4.5 x 4.0 x 2.4 cm. A significantly rich specimen just loaded with arsentsumebite crystals on anglesite.
MD-198046 - Azurite, Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia thumbnail, 2.3 x 1.3 x 1.8 cm.
2.3 x 1.3 x 1.8 cm. A sharp thumbnail from the famous Easter Pocket, showing the characteristic, and so far unique, tabular crystal habit that the pocket is famous for. Ex. Dr. Mark Feinglos Collection.
MD-198047 - Arsentsumebite, Mimetite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia small cabinet, 5.6 x 4.3 x 2.9 cm.
5.6 x 4.3 x 2.9 cm. An exceptionally rare and rich, very old-time specimen. This was originally labeled as pyromorphite (but never checked by analysis). Pyromorphite is not reported in crystalline form of any quality from Tsumeb and this would have been a miraculous piece. Further study has confirmed it is actually arsentsumebite pseudomorph after mimetite. Specimens of this type were reported to have been found in the upper oxidation zone, and so it most likely dates to 75 years or more in age. Ex. Gary Hansen Collection.
MD-216726 - Malachite, Azurite, Cerussite, Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia small cabinet, 6.5 x 5.5 x 5.1 cm.
6.5 x 5.5 x 5.1 cm. A great association specimen from noted rare species collector, Bill Pinch. This specimen features one predominant, euhedral, complete, sharp, blocky pseudomorph of Malachite after Azurite protruding from a matrix consisting of additional Malachite pseudomorphs after Azurite plus white/colorless, gemmy, sharp crystals of Cerussite. The final touch to this piece is some small spherical aggregates of apple-green color Arsentsumebite scattered here and there. Ex. Rob Smith and Bill Pinch Collections.
MD-234878 - Arsentsumebite, Azurite, Bayldonite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia miniature, 4.2 x 3.1 x 1.5 cm.
4.2 x 3.1 x 1.5 cm. Arsentsumebite is one of the rare lead, copper mineral species for which Tsumeb is famous and is the Type Locality. This is a fine, very rich, two-sided combination specimen with lots of grass-green arsentsumebite, lustrous, contrasting azurite and a bit of lighter green bayldonite on one side. Old material, probably predating the 1920s.
MD-272646 - Azurite, Arsentsumebite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia thumbnail, 2.5 x 1.9 x 1.6 cm.
2.5 x 1.9 x 1.6 cm. A beautiful "bowtie" of highly lustrous Azurite, with bright green Arsentsumebite adding eye-catching contrast. The blocky Azurites radiate in opposite directions, creating the bowtie effect. The luster is mirror-like, and the deep blue color shows excellent flashes of azure. A very aesthetic thumbnail with brilliant color contrast. From old workings in the first oxidation zone, probably prior to 1940. Ex. Charlie Key.
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