Alamosite from
Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Alamosite | |
| Formula: | PbSiO3 | |
| Comments: | “Until the nineteen seventies the presence of lead silicates was unknown at Tsumeb. The first lead silicate specimen, alamosite, was discovered during a photographic session at the collection of W.R. Kahn. A piece of aragonite was to be featured, but the specimen that was photographed was slightly too heavy for aragonite. It was composed of radiating 8 cm spray of bundles of elongated, terminated white crystals up to 4 cm. The luster was also different to the known luster of the carbonate. Further examination gave the surprising result that this aragonite was in fact alamosite. This particular specimen is the best alamosite yet found anywhere. Another great specimen belongs to the collection of the Houston Museum. Tsumeb is the only locality from which crystals of alamosite have been reported, and a total of about 20 specimens have been found. Alamosite is often associated with small green-black spheres of melanotekite.”1 Georg Gebhard, Tsumeb, 1999, p163. | |
| Habit: | divergent sprays | |
| Colour: | clear / white | |
| Quality for species: | Excellent - world class for species or very significant. (!!) | |
| Abundance at site: | Very Rare | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Associated Minerals Based on Photo Data: | ||
| Melanotekite | 26 | |
| Kegelite | 10 | |
| Leadhillite | 4 | |
| Anglesite | 2 | |
| Galena | 2 | |
| Willemite | 2 | |
| Hematite | 2 | |
| Plumbotsumite | 1 | |
| Chalcocite | 1 | |
| Data | ||
| Mineral Data: | Click here to view Alamosite data | |
| Locality Data: | Click here to view Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia | |
| Photo Gallery | View Gallery (21 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 310 | |
| Long-form Identifier: | 1:3:310:4 | |
| GUID (UUID V4): | 0 | |
| References | ||
Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia