Mindat.org (original) (raw)
Arsentsumebite from
Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia
| Locality type: | Mine |
|---|---|
| Classification | |
| Species: | Arsentsumebite |
| Formula: | Pb2Cu(AsO4)(SO4)(OH) |
| Comments: | The most easily recognizable occurrence of arsentsumebite is the emerald- to apple-green crusts on mimetite. Arsentsumebite rims these pseudomorphs, which consists of bayldonite and duftite in the inner part of the host mimetite crystals. The finest specimens of all time were found during the excavation of the 6 level in 1988. Surfaces up to 10 by 5 cm are completely covered by brilliant crystals of arsentsumebite. Crystals are always small, being less than 2 mm. (Gebhard, 1999)In 1990, workings in the upper levels of the Tsumeb mine produced a quantity of extremely fine azurite specimens. Some specimens are associated with green smithsonite, or have been partially replaced by arsentsumebite. The color combinations are striking, as are the crystals themselves, some of which are nearly 10 cm in length, with excellent luster. ( Mineralogical Record, 1991) |
| Confirmation | |
| Validity: | Valid - Type Locality |
| Associated Minerals Based on Photo Data: | |
| Azurite | ⓘ164 photos of Arsentsumebite associated with Azurite at this locality. |
| Malachite | ⓘ48 photos of Arsentsumebite associated with Malachite at this locality. |
| Cerussite | ⓘ42 photos of Arsentsumebite associated with Cerussite at this locality. |
| Bayldonite | ⓘ23 photos of Arsentsumebite associated with Bayldonite at this locality. |
| Anglesite | ⓘ20 photos of Arsentsumebite associated with Anglesite at this locality. |
| Duftite | ⓘ12 photos of Arsentsumebite associated with Duftite at this locality. |
| Quartz | ⓘ12 photos of Arsentsumebite associated with Quartz at this locality. |
| Mimetite | ⓘ9 photos of Arsentsumebite associated with Mimetite at this locality. |
| Beudantite | ⓘ7 photos of Arsentsumebite associated with Beudantite at this locality. |
| Calcite | ⓘ5 photos of Arsentsumebite associated with Calcite at this locality. |
| Data | |
| Mineral Data: | Click here to view Arsentsumebite data |
| Locality Data: | Click here to view Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia |
| Photo Gallery | View Gallery (70 photos) |
| Data Identifiers | |
| Mindat Occurrence Record ID: | 1228 |
| Long-form Identifier: | 1:3:1228:7 |
| GUID (UUID V4): | 7523689c-1923-442f-b541-8160ab28bf52 |
| References | |
| Bideaux, R.A., Nichols, M.C., Williams, S.A. (1966) The arsenate analogue of tsumebite, a new mineral. American Mineralogist: 51: 258-259. (1975) Aufschluss: 10: 369. Gebhard, G. (1999) Tsumeb – A unique mineral locality. GG Publishing, |