Hotazel Mine, Hotazel, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africai
| Regional Level Types | |
|---|---|
| Hotazel Mine | Mine |
| Hotazel | Town |
| Joe Morolong Local Municipality | Municipality |
| John Taolo Gaetsewe District Municipality | District Municipality |
| Northern Cape | Province |
| South Africa | Country |
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Latitude & Longitude (WGS84):
27° 12' 7'' South , 22° 58' 13'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The Hotazel outlier is situated in a graben to the east of Black Rock and contains a very high-grade ore (60 to 70 percent average). Hausmannite with lesser amounts of other minerals and a very low carbonate component are the main constituents of the Hotazel supergrade ores.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Baryte Formula: BaSO4 Description: Small clear tabular crystals associated with massive baryte. |
| ⓘ Birnessite Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| ⓘ Bixbyite-(Mn) Formula: Mn3+2O3 |
| ⓘ Braunite Formula: Mn2+Mn3+6(SiO4)O8 |
| ⓘ Calcite Formula: CaCO3 Habit: Regular rhombohedrons and scalenohedrons, in many cases encrusted with quartz or chalcedony. Description: Crystals very common up to cabinet size (SAMS datasheet ML 02). |
| ⓘ Chalcophanite Formula: ZnMn4+3O7 · 3H2O |
| ⓘ Cryptomelane Formula: K(Mn4+7Mn3+)O16 |
| ⓘ Cymrite Formula: BaAl2Si2(O,OH)8 · H2O |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ Ettringite ? Formula: Ca6Al2(SO4)3(OH)12 · 26H2O Description: Ettringite is not reported from locality according to studies carried out by the South African Micromount Society datasheet ML 02 |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Hausmannite Formula: Mn2+Mn3+2O4 Description: Crystals are similar in features to Wessels & N'Chwaning mines but are dull. References: |
| ⓘ Hollandite Formula: Ba(Mn4+6Mn3+2)O16 Description: Microscopically identified in the ore. |
| ⓘ Jacobsite Formula: Mn2+Fe3+2O4 |
| ⓘ Lepidocrocite Formula: Fe3+O(OH) Description: Found in association with epidote. |
| ⓘ Manganite Formula: Mn3+O(OH) |
| ⓘ Nsutite Formula: (Mn4+,Mn2+)(O,OH)2 Description: Occurs as a weathering product with cryptomelane in the ore bodies close to the surface. |
| ⓘ Opal Formula: SiO2 · nH2O |
| ⓘ Piemontite Formula: (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| ⓘ Quartz Formula: SiO2 Description: Reference given refers to chalcedony. |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
| ⓘ Ramsdellite Formula: Mn4+O2 |
| ⓘ Ranciéite Formula: (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O |
| ⓘ Rhodochrosite Formula: MnCO3 |
| ⓘ Sussexite Formula: Mn2+BO2(OH) |
| ⓘ Todorokite Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O Description: 99% of todorokite from the Kalahari manganese field came from the Smartt mine (personal comment by Bruce Cairncross to Debbie Woolf Jan 2016). |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Jacobsite | 4.BB.05 | Mn2+Fe3+2O4 |
| ⓘ | Hausmannite | 4.BB.10 | Mn2+Mn3+2O4 |
| ⓘ | Bixbyite-(Mn) | 4.CB.10 | Mn3+2O3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | Ramsdellite | 4.DB.15a | Mn4+O2 |
| ⓘ | Nsutite | 4.DB.15c | (Mn4+,Mn2+)(O,OH)2 |
| ⓘ | Cryptomelane | 4.DK.05a | K(Mn4+7Mn3+)O16 |
| ⓘ | Hollandite | 4.DK.05a | Ba(Mn4+6Mn3+2)O16 |
| ⓘ | Todorokite | 4.DK.10 | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| ⓘ | Manganite | 4.FD.15 | Mn3+O(OH) |
| ⓘ | Lepidocrocite | 4.FE.15 | Fe3+O(OH) |
| ⓘ | Chalcophanite | 4.FL.20 | ZnMn4+3O7 · 3H2O |
| ⓘ | Ranciéite | 4.FL.40 | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O |
| ⓘ | Birnessite | 4.FL.45 | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Rhodochrosite | 5.AB.05 | MnCO3 |
| Group 6 - Borates | |||
| ⓘ | Sussexite | 6.BA.15 | Mn2+BO2(OH) |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | Ettringite ? | 7.DG.15 | Ca6Al2(SO4)3(OH)12 · 26H2O |
| Group 9 - Silicates | |||
| ⓘ | Braunite | 9.AG.05 | Mn2+Mn3+6(SiO4)O8 |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Piemontite | 9.BG.05a | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| ⓘ | Cymrite | 9.EG.05 | BaAl2Si2(O,OH)8 · H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| H | ⓘ Chalcophanite | ZnMn34+O7 · 3H2O |
| H | ⓘ Cymrite | BaAl2Si2(O,OH)8 · H2O |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Lepidocrocite | Fe3+O(OH) |
| H | ⓘ Manganite | Mn3+O(OH) |
| H | ⓘ Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Ranciéite | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O |
| H | ⓘ Sussexite | Mn2+BO2(OH) |
| H | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| B | Boron | |
| B | ⓘ Sussexite | Mn2+BO2(OH) |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Rhodochrosite | MnCO3 |
| O | Oxygen | |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| O | ⓘ Bixbyite-(Mn) | Mn23+O3 |
| O | ⓘ Braunite | Mn2+Mn63+(SiO4)O8 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Chalcophanite | ZnMn34+O7 · 3H2O |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Cryptomelane | K(Mn74+Mn3+)O16 |
| O | ⓘ Cymrite | BaAl2Si2(O,OH)8 · H2O |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hausmannite | Mn2+Mn23+O4 |
| O | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| O | ⓘ Jacobsite | Mn2+Fe23+O4 |
| O | ⓘ Lepidocrocite | Fe3+O(OH) |
| O | ⓘ Manganite | Mn3+O(OH) |
| O | ⓘ Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Ramsdellite | Mn4+O2 |
| O | ⓘ Ranciéite | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O |
| O | ⓘ Rhodochrosite | MnCO3 |
| O | ⓘ Sussexite | Mn2+BO2(OH) |
| O | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Na | Sodium | |
| Na | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| Na | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mg | Magnesium | |
| Mg | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Al | Aluminium | |
| Al | ⓘ Cymrite | BaAl2Si2(O,OH)8 · H2O |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| Al | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Si | Silicon | |
| Si | ⓘ Braunite | Mn2+Mn63+(SiO4)O8 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Cymrite | BaAl2Si2(O,OH)8 · H2O |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| K | Potassium | |
| K | ⓘ Cryptomelane | K(Mn74+Mn3+)O16 |
| K | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ca | Calcium | |
| Ca | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Ranciéite | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O |
| Ca | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mn | Manganese | |
| Mn | ⓘ Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| Mn | ⓘ Bixbyite-(Mn) | Mn23+O3 |
| Mn | ⓘ Braunite | Mn2+Mn63+(SiO4)O8 |
| Mn | ⓘ Chalcophanite | ZnMn34+O7 · 3H2O |
| Mn | ⓘ Cryptomelane | K(Mn74+Mn3+)O16 |
| Mn | ⓘ Hausmannite | Mn2+Mn23+O4 |
| Mn | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| Mn | ⓘ Jacobsite | Mn2+Fe23+O4 |
| Mn | ⓘ Manganite | Mn3+O(OH) |
| Mn | ⓘ Nsutite | (Mn4+,Mn2+)(O,OH)2 |
| Mn | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Mn | ⓘ Ramsdellite | Mn4+O2 |
| Mn | ⓘ Ranciéite | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O |
| Mn | ⓘ Rhodochrosite | MnCO3 |
| Mn | ⓘ Sussexite | Mn2+BO2(OH) |
| Mn | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Fe | Iron | |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Jacobsite | Mn2+Fe23+O4 |
| Fe | ⓘ Lepidocrocite | Fe3+O(OH) |
| Zn | Zinc | |
| Zn | ⓘ Chalcophanite | ZnMn34+O7 · 3H2O |
| Sr | Strontium | |
| Sr | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Ba | ⓘ Cymrite | BaAl2Si2(O,OH)8 · H2O |
| Ba | ⓘ Hollandite | Ba(Mn64+Mn23+)O16 |
| Ba | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
Other Regions, Features and Areas containing this locality
AfricaContinent
- Kalahari DesertDesert
African PlateTectonic Plate
- Kalahari basinBasin
South Africa
- Northern Cape
- John Taolo Gaetsewe District Municipality
- Kalahari manganese fieldOre Field
- John Taolo Gaetsewe District Municipality
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Hotazel Mine, Hotazel, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa