Log In
N'Chwaning I Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africai
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
27° 8' 7'' South , 22° 52' 13'' East
Latitude & Longitude (decimal):
Type:
Mine (Abandoned) - last checked 2020
Köppen climate type:
A closed manganese mine owned by Assoc. Manganese Mines of South Africa, Ltd.
The north-western areas, where mining began, were noted for the presence of exceptional rhodochrosite specimens associated with mainly manganite and drusy secondary quartz. The ore here consisted mainly of the Hotazel Supergroup.
Later, mining shifted to the southern areas. Here well-crystallized hausmannite, baryte, hydroxyapophyllite-(K), inesite, brucite, and celestine were found and rhodochrosite became a rarity (Extract from Cairncross et al., 1995).
Note: The majority of the red rhodochrosite specimens are from this mine and not N'Chwaning II mine.
The north-western areas, where mining began, were noted for the presence of exceptional rhodochrosite specimens associated with mainly manganite and drusy secondary quartz. The ore here consisted mainly of the Hotazel Supergroup.
Later, mining shifted to the southern areas. Here well-crystallized hausmannite, baryte, hydroxyapophyllite-(K), inesite, brucite, and celestine were found and rhodochrosite became a rarity (Extract from Cairncross et al., 1995).
Note: The majority of the red rhodochrosite specimens are from this mine and not N'Chwaning II mine.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
48 valid minerals. 2 erroneous literature entries.
Detailed Mineral List:
| ⓘ Afwillite Formula: Ca3[SiO4][SiO2(OH)2] · 2H2O |
| ⓘ Andradite Formula: Ca3Fe3+2(SiO4)3 |
| ⓘ Aragonite Formula: CaCO3 |
| ⓘ Baryte Formula: BaSO4 Habit: Tabular Description: Tabular crystals up to 10cm on edge are recorded from here. |
| ⓘ Bixbyite-(Mn) Formula: Mn3+2O3 |
| ⓘ Braunite Formula: Mn2+Mn3+6(SiO4)O8 |
| ⓘ Brucite Formula: Mg(OH)2 |
| ⓘ Bultfonteinite Formula: Ca2(HSiO4)F · H2O |
| ⓘ Bustamite Formula: CaMn2+(Si2O6) |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Caryopilite Formula: Mn2+3Si2O5(OH)4 |
| ⓘ Celestine Formula: SrSO4 Habit: Blocky Colour: Pale blue Description: Celestine crystals are found on calcite at this mine. |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Creedite Formula: Ca3Al2(SO4)(OH)2F8 · 2H2O |
| ⓘ Ettringite Formula: Ca6Al2(SO4)3(OH)12 · 26H2O Description: Ettringite, Jouravskite, Charlesite and Sturmanite cannot be identified visually. All specimens are at best a 'guess' unless analysed, there are no visual properties to distinguish one from another, other mineral associations do not factor either. |
| ⓘ Friedelite Formula: Mn2+8Si6O15(OH,Cl)10 |
| ⓘ Gageite Formula: Mn21(Si4O12)2O3(OH)20 |
| ⓘ 'Gageite-2M' Formula: (Mn,Mg,Zn)42Si16O54(OH)40 References: |
| ⓘ Galena Formula: PbS |
| ✪ Gatehouseite Formula: Mn2+5(PO4)2(OH)4 Habit: Acicular Colour: Yellow Description: Occurs in the shigaite zone associated with baryte, rhodochrosite and shigaite. |
| ⓘ Gaudefroyite Formula: Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| ⓘ 'Glauconite' Formula: K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
| ⓘ Gowerite Formula: Ca[B5O8(OH)][B(OH)3] · 3H2O |
| ⓘ Groutite Formula: Mn3+O(OH) |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Hausmannite Formula: Mn2+Mn3+2O4 |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Henritermierite Formula: Ca3Mn3+2(SiO4)2[◻(OH)4] |
| ⓘ Hydroxyapophyllite-(K) Formula: KCa4(Si8O20)(OH,F) · 8H2O |
| ⓘ Inesite Formula: Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O |
| ⓘ Jouravskite Formula: Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O Description: Jouravskite, Charlesite, Sturmanite and Ettringite cannot be identified visually. All specimens are at best a 'guess' unless analysed, there are no visual properties to distinguish one from another, other mineral associations do not factor either. |
| ⓘ Kutnohorite Formula: CaMn2+(CO3)2 |
| ⓘ Lepidocrocite Formula: Fe3+O(OH) |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Manganite Formula: Mn3+O(OH) |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Formula: Ca4Mn3Si8O20(OH)6 · 2H2O Description: Not known/recorded from this mine. |
| ⓘ Oyelite Formula: Ca10Si8B2O29 · 12.5H2O |
| ⓘ Poldervaartite ? Formula: CaCa[SiO3(OH)](OH) |
| ⓘ Portlandite Formula: Ca(OH)2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrochroite Formula: Mn(OH)2 |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
| ✪ Rhodochrosite Formula: MnCO3 Habit: Scalenohedrons to 7cm, "wheat sheaf", spherical aggregates, rhombohedrons, fan shaped groups Colour: Wine-red to pale pink Description: Numerous pockets of rhodochrosite crystals were found during the shaft sinking as well as mining with major discoveries in 1976-1978. The largest pocket measured 0.5 by 1.0 meter in size and produced a 100kg specimen. The red scalenohedrons were sold for 4 figure prices during the 1970's and 1980's.
References: |
| ⓘ Ruizite Formula: Ca2Mn3+2[Si4O11(OH)2](OH)2 · 2H2O References: |
| ✪ Shigaite Formula: Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O Habit: Hexagonal, tabular crystals Colour: Pale yellow to burnt orange, brown, and amber-red Description: Crystal size is from less than 1 mm to 3.2 cm across References: |
| ⓘ Sturmanite Formula: Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2O Description: Sturmanite, Ettringite, Jouravskite and Charlesite cannot be identified visually. All specimens are at best a 'guess' unless analysed, there are no visual properties to distinguish one from another, other mineral associations do not factor either. |
| ⓘ Sugilite Formula: KNa2Fe3+2Li3[Si12O30] |
| ⓘ Thaumasite Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| ⓘ Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O Description: Reference given does not state todorokite occurs at this mine ([Von Bezing, K. L. et al. (1991) - The Kalahari (Afrique du Sud) manganese field : an update, Mineralogical Record, 22 (3), 279-302.]) Debbie Woolf |
| ⓘ Vesuvianite Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| ⓘ Waterhouseite Formula: Mn2+7(PO4)2(OH)8 References: PXRD and EDS performed by Chris Emproto and Travis Olds 5-2024Identification: XRD, SEM-EDS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Creedite | 3.CG.15 | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hausmannite | 4.BB.10 | Mn2+Mn3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Bixbyite-(Mn) | 4.CB.10 | Mn3+2O3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | Todorokite ? | 4.DK.10 | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| ⓘ | Groutite | 4.FD.10 | Mn3+O(OH) |
| ⓘ | Manganite | 4.FD.15 | Mn3+O(OH) |
| ⓘ | Brucite | 4.FE.05 | Mg(OH)2 |
| ⓘ | Portlandite | 4.FE.05 | Ca(OH)2 |
| ⓘ | Pyrochroite | 4.FE.05 | Mn(OH)2 |
| ⓘ | Lepidocrocite | 4.FE.15 | Fe3+O(OH) |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Rhodochrosite | 5.AB.05 | MnCO3 |
| ⓘ | Kutnohorite | 5.AB.10 | CaMn2+(CO3)2 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 6 - Borates | |||
| ⓘ | Gaudefroyite | 6.AB.60 | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| ⓘ | Gowerite | 6.EC.10 | Ca[B5O8(OH)][B(OH)3] · 3H2O |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Celestine | 7.AD.35 | SrSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | Shigaite | 7.DD.35 | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| ⓘ | Ettringite | 7.DG.15 | Ca6Al2(SO4)3(OH)12 · 26H2O |
| ⓘ | Jouravskite | 7.DG.15 | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
| ⓘ | Sturmanite | 7.DG.15 | Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2O |
| ⓘ | Thaumasite | 7.DG.15 | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Gatehouseite | 8.BD.10 | Mn2+5(PO4)2(OH)4 |
| ⓘ | Waterhouseite | 8.BE.85 | Mn2+7(PO4)2(OH)8 |
| Group 9 - Silicates | |||
| ⓘ | Andradite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
| ⓘ | Henritermierite | 9.AD.25 | Ca3Mn3+2(SiO4)2[◻(OH)4] |
| ⓘ | Poldervaartite ? | 9.AF.90 | CaCa[SiO3(OH)](OH) |
| ⓘ | Braunite | 9.AG.05 | Mn2+Mn3+6(SiO4)O8 |
| ⓘ | Afwillite | 9.AG.75 | Ca3[SiO4][SiO2(OH)2] · 2H2O |
| ⓘ | Bultfonteinite | 9.AG.80 | Ca2(HSiO4)F · H2O |
| ⓘ | Vesuvianite | 9.BG.35 | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| ⓘ | Ruizite | 9.BJ.35 | Ca2Mn3+2[Si4O11(OH)2](OH)2 · 2H2O |
| ⓘ | Sugilite | 9.CM.05 | KNa2Fe3+2Li3[Si12O30] |
| ⓘ | Bustamite | 9.DG.05 | CaMn2+(Si2O6) |
| ⓘ | 'Gageite-2M' | 9.DH. | (Mn,Mg,Zn)42Si16O54(OH)40 |
| ⓘ | Gageite | 9.DH.35 | Mn21(Si4O12)2O3(OH)20 |
| ⓘ | Inesite | 9.DL.05 | Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O |
| ⓘ | Hydroxyapophyllite-(K) | 9.EA.15 | KCa4(Si8O20)(OH,F) · 8H2O |
| ⓘ | Caryopilite | 9.ED.15 | Mn2+3Si2O5(OH)4 |
| ⓘ | Friedelite | 9.EE.10 | Mn2+8Si6O15(OH,Cl)10 |
| ⓘ | Orlymanite ? | 9.EE.30 | Ca4Mn3Si8O20(OH)6 · 2H2O |
| ⓘ | Oyelite | 9.HA.80 | Ca10Si8B2O29 · 12.5H2O |
| Unclassified | |||
| ⓘ | 'Glauconite' | - | K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Afwillite | Ca3[SiO4][SiO2(OH)2] · 2H2O |
| H | ⓘ Bultfonteinite | Ca2(HSiO4)F · H2O |
| H | ⓘ Brucite | Mg(OH)2 |
| H | ⓘ Caryopilite | Mn32+Si2O5(OH)4 |
| H | ⓘ Creedite | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| H | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| H | ⓘ Friedelite | Mn82+Si6O15(OH,Cl)10 |
| H | ⓘ Gageite | Mn21(Si4O12)2O3(OH)20 |
| H | ⓘ Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| H | ⓘ Glauconite | K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
| H | ⓘ Gowerite | Ca[B5O8(OH)][B(OH)3] · 3H2O |
| H | ⓘ Groutite | Mn3+O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Henritermierite | Ca3Mn23+(SiO4)2[◻(OH)4] |
| H | ⓘ Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| H | ⓘ Inesite | Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O |
| H | ⓘ Jouravskite | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
| H | ⓘ Lepidocrocite | Fe3+O(OH) |
| H | ⓘ Manganite | Mn3+O(OH) |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Orlymanite | Ca4Mn3Si8O20(OH)6 · 2H2O |
| H | ⓘ Oyelite | Ca10Si8B2O29 · 12.5H2O |
| H | ⓘ Poldervaartite | CaCa[SiO3(OH)](OH) |
| H | ⓘ Portlandite | Ca(OH)2 |
| H | ⓘ Pyrochroite | Mn(OH)2 |
| H | ⓘ Ruizite | Ca2Mn23+[Si4O11(OH)2](OH)2 · 2H2O |
| H | ⓘ Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| H | ⓘ Sturmanite | Ca6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O |
| H | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| H | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| H | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| H | ⓘ Gageite-2M | (Mn,Mg,Zn)42Si16O54(OH)40 |
| H | ⓘ Gatehouseite | Mn52+(PO4)2(OH)4 |
| H | ⓘ Waterhouseite | Mn72+(PO4)2(OH)8 |
| Li | Lithium | |
| Li | ⓘ Sugilite | KNa2Fe23+Li3[Si12O30] |
| B | Boron | |
| B | ⓘ Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| B | ⓘ Gowerite | Ca[B5O8(OH)][B(OH)3] · 3H2O |
| B | ⓘ Oyelite | Ca10Si8B2O29 · 12.5H2O |
| B | ⓘ Sturmanite | Ca6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| C | ⓘ Jouravskite | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
| C | ⓘ Kutnohorite | CaMn2+(CO3)2 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Rhodochrosite | MnCO3 |
| C | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| O | Oxygen | |
| O | ⓘ Afwillite | Ca3[SiO4][SiO2(OH)2] · 2H2O |
| O | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Bixbyite-(Mn) | Mn23+O3 |
| O | ⓘ Braunite | Mn2+Mn63+(SiO4)O8 |
| O | ⓘ Bultfonteinite | Ca2(HSiO4)F · H2O |
| O | ⓘ Bustamite | CaMn2+(Si2O6) |
| O | ⓘ Brucite | Mg(OH)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Caryopilite | Mn32+Si2O5(OH)4 |
| O | ⓘ Celestine | SrSO4 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Creedite | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| O | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| O | ⓘ Friedelite | Mn82+Si6O15(OH,Cl)10 |
| O | ⓘ Gageite | Mn21(Si4O12)2O3(OH)20 |
| O | ⓘ Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| O | ⓘ Glauconite | K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
| O | ⓘ Gowerite | Ca[B5O8(OH)][B(OH)3] · 3H2O |
| O | ⓘ Groutite | Mn3+O(OH) |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hausmannite | Mn2+Mn23+O4 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Henritermierite | Ca3Mn23+(SiO4)2[◻(OH)4] |
| O | ⓘ Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| O | ⓘ Inesite | Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O |
| O | ⓘ Jouravskite | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
| O | ⓘ Kutnohorite | CaMn2+(CO3)2 |
| O | ⓘ Lepidocrocite | Fe3+O(OH) |
| O | ⓘ Manganite | Mn3+O(OH) |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Orlymanite | Ca4Mn3Si8O20(OH)6 · 2H2O |
| O | ⓘ Oyelite | Ca10Si8B2O29 · 12.5H2O |
| O | ⓘ Poldervaartite | CaCa[SiO3(OH)](OH) |
| O | ⓘ Portlandite | Ca(OH)2 |
| O | ⓘ Pyrochroite | Mn(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rhodochrosite | MnCO3 |
| O | ⓘ Ruizite | Ca2Mn23+[Si4O11(OH)2](OH)2 · 2H2O |
| O | ⓘ Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| O | ⓘ Sturmanite | Ca6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O |
| O | ⓘ Sugilite | KNa2Fe23+Li3[Si12O30] |
| O | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| O | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| O | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| O | ⓘ Gageite-2M | (Mn,Mg,Zn)42Si16O54(OH)40 |
| O | ⓘ Gatehouseite | Mn52+(PO4)2(OH)4 |
| O | ⓘ Waterhouseite | Mn72+(PO4)2(OH)8 |
| F | Fluorine | |
| F | ⓘ Bultfonteinite | Ca2(HSiO4)F · H2O |
| F | ⓘ Creedite | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| F | ⓘ Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| Na | Sodium | |
| Na | ⓘ Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| Na | ⓘ Sugilite | KNa2Fe23+Li3[Si12O30] |
| Na | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mg | Magnesium | |
| Mg | ⓘ Brucite | Mg(OH)2 |
| Mg | ⓘ Glauconite | K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
| Mg | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mg | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Mg | ⓘ Gageite-2M | (Mn,Mg,Zn)42Si16O54(OH)40 |
| Al | Aluminium | |
| Al | ⓘ Creedite | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| Al | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| Al | ⓘ Glauconite | K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
| Al | ⓘ Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| Al | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Al | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Si | Silicon | |
| Si | ⓘ Afwillite | Ca3[SiO4][SiO2(OH)2] · 2H2O |
| Si | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Si | ⓘ Braunite | Mn2+Mn63+(SiO4)O8 |
| Si | ⓘ Bultfonteinite | Ca2(HSiO4)F · H2O |
| Si | ⓘ Bustamite | CaMn2+(Si2O6) |
| Si | ⓘ Caryopilite | Mn32+Si2O5(OH)4 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Friedelite | Mn82+Si6O15(OH,Cl)10 |
| Si | ⓘ Gageite | Mn21(Si4O12)2O3(OH)20 |
| Si | ⓘ Glauconite | K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
| Si | ⓘ Henritermierite | Ca3Mn23+(SiO4)2[◻(OH)4] |
| Si | ⓘ Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| Si | ⓘ Inesite | Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O |
| Si | ⓘ Orlymanite | Ca4Mn3Si8O20(OH)6 · 2H2O |
| Si | ⓘ Oyelite | Ca10Si8B2O29 · 12.5H2O |
| Si | ⓘ Poldervaartite | CaCa[SiO3(OH)](OH) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Ruizite | Ca2Mn23+[Si4O11(OH)2](OH)2 · 2H2O |
| Si | ⓘ Sugilite | KNa2Fe23+Li3[Si12O30] |
| Si | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| Si | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Si | ⓘ Gageite-2M | (Mn,Mg,Zn)42Si16O54(OH)40 |
| P | Phosphorus | |
| P | ⓘ Gatehouseite | Mn52+(PO4)2(OH)4 |
| P | ⓘ Waterhouseite | Mn72+(PO4)2(OH)8 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Celestine | SrSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Creedite | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| S | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| S | ⓘ Galena | PbS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Jouravskite | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| S | ⓘ Sturmanite | Ca6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O |
| S | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| Cl | Chlorine | |
| Cl | ⓘ Friedelite | Mn82+Si6O15(OH,Cl)10 |
| K | Potassium | |
| K | ⓘ Glauconite | K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
| K | ⓘ Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| K | ⓘ Sugilite | KNa2Fe23+Li3[Si12O30] |
| K | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ca | Calcium | |
| Ca | ⓘ Afwillite | Ca3[SiO4][SiO2(OH)2] · 2H2O |
| Ca | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Bultfonteinite | Ca2(HSiO4)F · H2O |
| Ca | ⓘ Bustamite | CaMn2+(Si2O6) |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Creedite | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| Ca | ⓘ Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
| Ca | ⓘ Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| Ca | ⓘ Gowerite | Ca[B5O8(OH)][B(OH)3] · 3H2O |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Henritermierite | Ca3Mn23+(SiO4)2[◻(OH)4] |
| Ca | ⓘ Hydroxyapophyllite-(K) | KCa4(Si8O20)(OH,F) · 8H2O |
| Ca | ⓘ Inesite | Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O |
| Ca | ⓘ Jouravskite | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
| Ca | ⓘ Kutnohorite | CaMn2+(CO3)2 |
| Ca | ⓘ Orlymanite | Ca4Mn3Si8O20(OH)6 · 2H2O |
| Ca | ⓘ Oyelite | Ca10Si8B2O29 · 12.5H2O |
| Ca | ⓘ Poldervaartite | CaCa[SiO3(OH)](OH) |
| Ca | ⓘ Portlandite | Ca(OH)2 |
| Ca | ⓘ Ruizite | Ca2Mn23+[Si4O11(OH)2](OH)2 · 2H2O |
| Ca | ⓘ Sturmanite | Ca6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O |
| Ca | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| Ca | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ca | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Mn | Manganese | |
| Mn | ⓘ Bixbyite-(Mn) | Mn23+O3 |
| Mn | ⓘ Braunite | Mn2+Mn63+(SiO4)O8 |
| Mn | ⓘ Bustamite | CaMn2+(Si2O6) |
| Mn | ⓘ Caryopilite | Mn32+Si2O5(OH)4 |
| Mn | ⓘ Friedelite | Mn82+Si6O15(OH,Cl)10 |
| Mn | ⓘ Gageite | Mn21(Si4O12)2O3(OH)20 |
| Mn | ⓘ Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| Mn | ⓘ Groutite | Mn3+O(OH) |
| Mn | ⓘ Hausmannite | Mn2+Mn23+O4 |
| Mn | ⓘ Henritermierite | Ca3Mn23+(SiO4)2[◻(OH)4] |
| Mn | ⓘ Inesite | Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O |
| Mn | ⓘ Jouravskite | Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O |
| Mn | ⓘ Kutnohorite | CaMn2+(CO3)2 |
| Mn | ⓘ Manganite | Mn3+O(OH) |
| Mn | ⓘ Orlymanite | Ca4Mn3Si8O20(OH)6 · 2H2O |
| Mn | ⓘ Pyrochroite | Mn(OH)2 |
| Mn | ⓘ Rhodochrosite | MnCO3 |
| Mn | ⓘ Ruizite | Ca2Mn23+[Si4O11(OH)2](OH)2 · 2H2O |
| Mn | ⓘ Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
| Mn | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Mn | ⓘ Gageite-2M | (Mn,Mg,Zn)42Si16O54(OH)40 |
| Mn | ⓘ Gatehouseite | Mn52+(PO4)2(OH)4 |
| Mn | ⓘ Waterhouseite | Mn72+(PO4)2(OH)8 |
| Fe | Iron | |
| Fe | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Glauconite | K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Inesite | Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O |
| Fe | ⓘ Lepidocrocite | Fe3+O(OH) |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Sturmanite | Ca6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O |
| Fe | ⓘ Sugilite | KNa2Fe23+Li3[Si12O30] |
| Fe | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zn | Zinc | |
| Zn | ⓘ Gageite-2M | (Mn,Mg,Zn)42Si16O54(OH)40 |
| Sr | Strontium | |
| Sr | ⓘ Celestine | SrSO4 |
| Sr | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Ba | ⓘ Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
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
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
N'Chwaning I Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa