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SOLD Malachite ps after Copper, ex Bosch, Smithsonian
Tsumeb
Otjikoto Region, Namibia
5.7 x 3.6 x 2.5 CM (cabinet)
price: $0
Spring 2020

A super Pseudomorph with an outstanding, long provenance from the early years at Tsumeb. Radiating flower like structure that seems to be fully replaced by Malachite. Close to 100 percent Malachite, there is just a sliver of matrix on the base. An unusual form, as most Malachite Pseudos are clearly replacements of Azurite but this seems to be a replacement of a native copper structure. The bottom or underside has been sawn to make a flat spot so this sits perfectly on display. From the famed Carl Bosch collection (1874-1940) with his handwritten label and "code" to the Smithsonian institution and Charles M Noll, this has belonged in several major collections. The Bosch label code is described in the Mineralogical record, and if I can read this writing correctly it was obtained on July 17,1913 for 300 marks, a costly piece at that time. This is also a quite early specimen as the mine would not yet have reached level 6 at that date (it would eventually reach level 46) and this piece would have been found well before that date. There are relatively few specimens preserved from the earliest discoveries at the worlds greatest mineral locality. This is one.




SOLD Malachite ps after Copper, ex Bosch, Smithsonian
Tsumeb
Otjikoto Region, Namibia
5.7 x 3.6 x 2.5 CM (cabinet)
price: $0
Spring 2020

A super Pseudomorph with an outstanding, long provenance from the early years at Tsumeb. Radiating flower like structure that seems to be fully replaced by Malachite. Close to 100 percent Malachite, there is just a sliver of matrix on the base. An unusual form, as most Malachite Pseudos are clearly replacements of Azurite but this seems to be a replacement of a native copper structure. The bottom or underside has been sawn to make a flat spot so this sits perfectly on display. From the famed Carl Bosch collection (1874-1940) with his handwritten label and "code" to the Smithsonian institution and Charles M Noll, this has belonged in several major collections. The Bosch label code is described in the Mineralogical record, and if I can read this writing correctly it was obtained on July 17,1913 for 300 marks, a costly piece at that time. This is also a quite early specimen as the mine would not yet have reached level 6 at that date (it would eventually reach level 46) and this piece would have been found well before that date. There are relatively few specimens preserved from the earliest discoveries at the worlds greatest mineral locality. This is one.