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Negra Mine (Mina Negra; La Negra), Nor Lípez Province, Potosí, Boliviai
| Regional Level Types | |
|---|---|
| Negra Mine (Mina Negra; La Negra) | Mine |
| Nor Lípez Province | Province |
| Potosí | Department |
| Bolivia | Country |
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Latitude & Longitude:
20° South , 67° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~155km
Type:
Very low temperature, young veins in Pleistocene rhyolitic tuff. Attempted mining for manganese from 1939 to 1942 produced 520 tons of pyrolusite ore with 54% Mn, 1.3% Fe and 0.75% As, but the arsenic content makes it unsuitable for many purposes. Located at 3700m elevation, very close to the border of Chile, 8 km NNE of Cosca village.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Arseniosiderite Formula: Ca2Fe3+3(AsO4)3O2 · 3H2O |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ 'Limonite' |
| ⓘ 'Psilomelane' |
| ⓘ Pyrolusite Formula: Mn4+O2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Arseniosiderite | 8.DH.30 | Ca2Fe3+3(AsO4)3O2 · 3H2O |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Psilomelane' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Arseniosiderite | Ca2Fe33+(AsO4)3O2 · 3H2O |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| O | Oxygen | |
| O | ⓘ Arseniosiderite | Ca2Fe33+(AsO4)3O2 · 3H2O |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Pyrolusite | Mn4+O2 |
| S | Sulfur | |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | Calcium | |
| Ca | ⓘ Arseniosiderite | Ca2Fe33+(AsO4)3O2 · 3H2O |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Arseniosiderite | Ca2Fe33+(AsO4)3O2 · 3H2O |
| As | Arsenic | |
| As | ⓘ Arseniosiderite | Ca2Fe33+(AsO4)3O2 · 3H2O |
Other Regions, Features and Areas containing this locality
Altiplano PlateTectonic Plate
South AmericaContinent
- AndesMountain Range
South America Plate
- Altiplano basinBasin
- Andean PlateauOrogenic Belt
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