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N'Chwaning I Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africai
Regional Level Types
N'Chwaning I MineMine (Abandoned)
N'Chwaning MinesGroup of Mines
Joe Morolong Local MunicipalityMunicipality
John Taolo Gaetsewe District MunicipalityDistrict Municipality
Northern CapeProvince
South AfricaCountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
27° 8' 7'' South , 22° 52' 13'' East
Latitude & Longitude (decimal):
-27.13528,22.87028
GeoHash:
G#: ke0m8kjts
GRN:
S19E15
Type:
Mine (Abandoned) - last checked 2020
KΓΆppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
3068
Long-form identifier:
mindat:1:2:3068:0
GUID (UUID V4):
cfcddb3a-b238-4b8b-8dd8-af29a57bc4ea


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, barite, hydroxyapophyllite, 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 Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


47 valid minerals. 2 erroneous literature entries.

Detailed Mineral List:

β“˜ Afwillite
Formula: Ca3(HSiO4)2 · 2H2O
β“˜ Andradite
Formula: Ca3Fe3+2(SiO4)3
β“˜ Aragonite
Formula: CaCO3
β“˜ Baryte
Formula: BaSO4
Habit: Tabular
Description: Tabular crystals up to 10cm on edge are recorded from here.
β“˜ Bixbyite-(Mn)
Formula: Mn3+2O3
β“˜ Braunite
Formula: Mn2+Mn3+6(SiO4)O8
β“˜ Brucite
Formula: Mg(OH)2
β“˜ Bultfonteinite
Formula: Ca2(HSiO4)F · H2O
β“˜ Bustamite
Formula: CaMn2+(Si2O6)
β“˜ Calcite
Formula: CaCO3
β“˜ Caryopilite
Formula: Mn2+3Si2O5(OH)4
β“˜ Celestine
Formula: SrSO4
Habit: Blocky
Colour: Pale blue
Description: Celestine crystals are found on calcite at this mine.
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Creedite
Formula: Ca3SO4Al2F8(OH)2 · 2H2O
β“˜ 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.
β“˜ Friedelite
Formula: Mn2+8Si6O15(OH,Cl)10
β“˜ Gageite
Formula: Mn21(Si4O12)2O3(OH)20
β“˜ 'Gageite-2M'
Formula: (Mn,Mg,Zn)42Si16O54(OH)40
β“˜ Galena
Formula: PbS
βœͺ Gatehouseite
Formula: Mn2+5(PO4)2(OH)4
Habit: Acicular
Colour: Yellow
Description: Occurs in the shigaite zone associated with baryte, rhodochrosite and shigaite.
β“˜ Gaudefroyite
Formula: Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3
β“˜ 'Glauconite'
Formula: K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
β“˜ Gowerite
Formula: Ca[B5O8(OH)][B(OH)3] · 3H2O
β“˜ Groutite
Formula: Mn3+O(OH)
β“˜ Gypsum
Formula: CaSO4 · 2H2O
β“˜ Hausmannite
Formula: Mn2+Mn3+2O4
β“˜ Hematite
Formula: Fe2O3
β“˜ Henritermierite
Formula: Ca3Mn3+2(SiO4)2[◻(OH)4]
β“˜ Hydroxyapophyllite-(K)
Formula: KCa4(Si8O20)(OH,F) · 8H2O
β“˜ Inesite
Formula: Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O
β“˜ 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.
β“˜ Kutnohorite
Formula: CaMn2+(CO3)2
β“˜ Lepidocrocite
Formula: γ-Fe3+O(OH)
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ Manganite
Formula: Mn3+O(OH)
β“˜ Marcasite
Formula: FeS2
β“˜ Orlymanite
Formula: Ca4Mn3Si8O20(OH)6 · 2H2O
Description: Not known/recorded from this mine.
β“˜ Oyelite
Formula: Ca10Si8B2O29 · 12.5H2O
β“˜ Poldervaartite ?
Formula: CaCa[SiO3(OH)](OH)
β“˜ Portlandite
Formula: Ca(OH)2
β“˜ Pyrite
Formula: FeS2
β“˜ Pyrochroite
Formula: Mn(OH)2
β“˜ Quartz
Formula: SiO2
β“˜ Quartz var. Chalcedony
Formula: SiO2
βœͺ 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. Habits Scalenohedron: The scalenohedral habit was relatively common and one could obtain single crystals as well as plates containing many crystals. Wheat sheaf: The wheat sheaf habit consists of a central group of pale pink crystals becoming clearer and redder toward the terminations. Spherical aggregates: Spheres of rhodochrosite are extremely rare, with a purported dozen specimens in total. Fan shaped aggregates: Fan shaped aggregates are also believed to be extremely rare. Scalenohedrons with a flat terminations
β“˜ Ruizite
Formula: Ca2Mn3+2[Si4O11(OH)2](OH)2 · 2H2O
βœͺ 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
β“˜ 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.
β“˜ Sugilite
Formula: KNa2Fe3+2Li3[Si12O30]
β“˜ Thaumasite
Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O
β“˜ Todorokite
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
β“˜ Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

Gallery:

Ca3Fe3+2(SiO4)3β“˜ Andradite
CaCO3β“˜ Aragonite
BaSO4β“˜ Baryte
Mn3+2O3β“˜ Bixbyite-(Mn)
Ca2(HSiO4)F · H2Oβ“˜ Bultfonteinite
CaCO3β“˜ Calcite
Ca6Al2(SO4)3(OH)12 · 26H2Oβ“˜ Ettringite
Mn21(Si4O12)2O3(OH)20β“˜ Gageite
Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3β“˜ Gaudefroyite
Mn2+Mn3+2O4β“˜ Hausmannite
Fe2O3β“˜ Hematite
Ca3Mn3+2(SiO4)2[◻(OH)4]β“˜ Henritermierite
Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2Oβ“˜ Inesite
CaMn2+(CO3)2β“˜ Kutnohorite
Mn3+O(OH)β“˜ Manganite
MnCO3β“˜ Rhodochrosite
Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2Oβ“˜ Shigaite
Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2Oβ“˜ Sturmanite
KNa2Fe3+2Li3[Si12O30]β“˜ Sugilite
Ca3(SO4)[Si(OH)6](CO3) · 12H2Oβ“˜ Thaumasite

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Galena2.CD.10PbS
β“˜Pyrite2.EB.05aFeS2
β“˜Marcasite2.EB.10aFeS2
Group 3 - Halides
β“˜Creedite3.CG.15Ca3SO4Al2F8(OH)2 Β· 2H2O
Group 4 - Oxides and Hydroxides
β“˜Hausmannite4.BB.10Mn2+Mn3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Bixbyite-(Mn)4.CB.10Mn3+2O3
β“˜Quartz
var. Chalcedony		4.DA.05SiO2
β“˜4.DA.05SiO2
β“˜Todorokite ?4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 Β· 3-4H2O
β“˜Groutite4.FD.10Mn3+O(OH)
β“˜Manganite4.FD.15Mn3+O(OH)
β“˜Portlandite4.FE.05Ca(OH)2
β“˜Pyrochroite4.FE.05Mn(OH)2
β“˜Brucite4.FE.05Mg(OH)2
β“˜Lepidocrocite4.FE.15Ξ³-Fe3+O(OH)
Group 5 - Nitrates and Carbonates
β“˜Rhodochrosite5.AB.05MnCO3
β“˜Calcite5.AB.05CaCO3
β“˜Kutnohorite5.AB.10CaMn2+(CO3)2
β“˜Aragonite5.AB.15CaCO3
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 6 - Borates
β“˜Gaudefroyite6.AB.60Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3
β“˜Gowerite6.EC.10Ca[B5O8(OH)][B(OH)3] Β· 3H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Celestine7.AD.35SrSO4
β“˜Baryte7.AD.35BaSO4
β“˜Gypsum7.CD.40CaSO4 Β· 2H2O
β“˜Shigaite7.DD.35Mn6Al3(OH)18[Na(H2O)6](SO4)2 Β· 6H2O
β“˜Ettringite7.DG.15Ca6Al2(SO4)3(OH)12 Β· 26H2O
β“˜Sturmanite7.DG.15Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 Β· 25H2O
β“˜Thaumasite7.DG.15Ca3(SO4)[Si(OH)6](CO3) Β· 12H2O
β“˜Jouravskite7.DG.15Ca3Mn4+(SO4)(CO3)(OH)6 Β· 12H2O
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Gatehouseite8.BD.10Mn2+5(PO4)2(OH)4
Group 9 - Silicates
β“˜Henritermierite9.AD.25Ca3Mn3+2(SiO4)2[β—»(OH)4]
β“˜Andradite9.AD.25Ca3Fe3+2(SiO4)3
β“˜Poldervaartite ?9.AF.90CaCa[SiO3(OH)](OH)
β“˜Braunite9.AG.05Mn2+Mn3+6(SiO4)O8
β“˜Afwillite9.AG.75Ca3(HSiO4)2 Β· 2H2O
β“˜Bultfonteinite9.AG.80Ca2(HSiO4)F Β· H2O
β“˜Vesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(β—»4)β—»[Si2O7]4[(SiO4)10]O(OH)9
β“˜Ruizite9.BJ.35Ca2Mn3+2[Si4O11(OH)2](OH)2 Β· 2H2O
β“˜Sugilite9.CM.05KNa2Fe3+2Li3[Si12O30]
β“˜Bustamite9.DG.05CaMn2+(Si2O6)
β“˜'Gageite-2M'9.DH.(Mn,Mg,Zn)42Si16O54(OH)40
β“˜Gageite9.DH.35Mn21(Si4O12)2O3(OH)20
β“˜Inesite9.DL.05Ca2(Mn,Fe)7Si10O28(OH)2 Β· 5H2O
β“˜Hydroxyapophyllite-(K)9.EA.15KCa4(Si8O20)(OH,F) Β· 8H2O
β“˜Caryopilite9.ED.15Mn2+3Si2O5(OH)4
β“˜Friedelite9.EE.10Mn2+8Si6O15(OH,Cl)10
β“˜Orlymanite ?9.EE.30Ca4Mn3Si8O20(OH)6 Β· 2H2O
β“˜Oyelite9.HA.80Ca10Si8B2O29 Β· 12.5H2O
Unclassified
β“˜'Glauconite'-K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2

List of minerals for each chemical element

HHydrogen
Hβ“˜ AfwilliteCa3(HSiO4)2 · 2H2O
Hβ“˜ BultfonteiniteCa2(HSiO4)F · H2O
Hβ“˜ BruciteMg(OH)2
Hβ“˜ CaryopiliteMn32+Si2O5(OH)4
Hβ“˜ CreediteCa3SO4Al2F8(OH)2 · 2H2O
Hβ“˜ EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
Hβ“˜ FriedeliteMn82+Si6O15(OH,Cl)10
Hβ“˜ GageiteMn21(Si4O12)2O3(OH)20
Hβ“˜ GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
Hβ“˜ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Hβ“˜ GoweriteCa[B5O8(OH)][B(OH)3] · 3H2O
Hβ“˜ GroutiteMn3+O(OH)
Hβ“˜ GypsumCaSO4 · 2H2O
Hβ“˜ HenritermieriteCa3Mn23+(SiO4)2[◻(OH)4]
Hβ“˜ Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
Hβ“˜ InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Hβ“˜ JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2O
Hβ“˜ Lepidocrociteγ-Fe3+O(OH)
Hβ“˜ ManganiteMn3+O(OH)
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
Hβ“˜ OyeliteCa10Si8B2O29 · 12.5H2O
Hβ“˜ PoldervaartiteCaCa[SiO3(OH)](OH)
Hβ“˜ PortlanditeCa(OH)2
Hβ“˜ PyrochroiteMn(OH)2
Hβ“˜ RuiziteCa2Mn23+[Si4O11(OH)2](OH)2 · 2H2O
Hβ“˜ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Hβ“˜ SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
Hβ“˜ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Hβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Hβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Hβ“˜ Gageite-2M(Mn,Mg,Zn)42Si16O54(OH)40
Hβ“˜ GatehouseiteMn52+(PO4)2(OH)4
LiLithium
Liβ“˜ SugiliteKNa2Fe23+Li3[Si12O30]
BBoron
Bβ“˜ GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
Bβ“˜ GoweriteCa[B5O8(OH)][B(OH)3] · 3H2O
Bβ“˜ OyeliteCa10Si8B2O29 · 12.5H2O
Bβ“˜ SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
CCarbon
Cβ“˜ AragoniteCaCO3
Cβ“˜ CalciteCaCO3
Cβ“˜ GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
Cβ“˜ JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2O
Cβ“˜ KutnohoriteCaMn2+(CO3)2
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ RhodochrositeMnCO3
Cβ“˜ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
OOxygen
Oβ“˜ AfwilliteCa3(HSiO4)2 · 2H2O
Oβ“˜ AndraditeCa3Fe23+(SiO4)3
Oβ“˜ AragoniteCaCO3
Oβ“˜ BaryteBaSO4
Oβ“˜ Bixbyite-(Mn)Mn23+O3
Oβ“˜ BrauniteMn2+Mn63+(SiO4)O8
Oβ“˜ BultfonteiniteCa2(HSiO4)F · H2O
Oβ“˜ BustamiteCaMn2+(Si2O6)
Oβ“˜ BruciteMg(OH)2
Oβ“˜ CalciteCaCO3
Oβ“˜ CaryopiliteMn32+Si2O5(OH)4
Oβ“˜ CelestineSrSO4
Oβ“˜ Quartz var. ChalcedonySiO2
Oβ“˜ CreediteCa3SO4Al2F8(OH)2 · 2H2O
Oβ“˜ EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
Oβ“˜ FriedeliteMn82+Si6O15(OH,Cl)10
Oβ“˜ GageiteMn21(Si4O12)2O3(OH)20
Oβ“˜ GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
Oβ“˜ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Oβ“˜ GoweriteCa[B5O8(OH)][B(OH)3] · 3H2O
Oβ“˜ GroutiteMn3+O(OH)
Oβ“˜ GypsumCaSO4 · 2H2O
Oβ“˜ HausmanniteMn2+Mn23+O4
Oβ“˜ HematiteFe2O3
Oβ“˜ HenritermieriteCa3Mn23+(SiO4)2[◻(OH)4]
Oβ“˜ Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
Oβ“˜ InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Oβ“˜ JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2O
Oβ“˜ KutnohoriteCaMn2+(CO3)2
Oβ“˜ Lepidocrociteγ-Fe3+O(OH)
Oβ“˜ ManganiteMn3+O(OH)
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
Oβ“˜ OyeliteCa10Si8B2O29 · 12.5H2O
Oβ“˜ PoldervaartiteCaCa[SiO3(OH)](OH)
Oβ“˜ PortlanditeCa(OH)2
Oβ“˜ PyrochroiteMn(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ RhodochrositeMnCO3
Oβ“˜ RuiziteCa2Mn23+[Si4O11(OH)2](OH)2 · 2H2O
Oβ“˜ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Oβ“˜ SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
Oβ“˜ SugiliteKNa2Fe23+Li3[Si12O30]
Oβ“˜ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Oβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Oβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Oβ“˜ Gageite-2M(Mn,Mg,Zn)42Si16O54(OH)40
Oβ“˜ GatehouseiteMn52+(PO4)2(OH)4
FFluorine
Fβ“˜ BultfonteiniteCa2(HSiO4)F · H2O
Fβ“˜ CreediteCa3SO4Al2F8(OH)2 · 2H2O
Fβ“˜ Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
NaSodium
Naβ“˜ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Naβ“˜ SugiliteKNa2Fe23+Li3[Si12O30]
Naβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
MgMagnesium
Mgβ“˜ BruciteMg(OH)2
Mgβ“˜ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Mgβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Mgβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Mgβ“˜ Gageite-2M(Mn,Mg,Zn)42Si16O54(OH)40
AlAluminium
Alβ“˜ CreediteCa3SO4Al2F8(OH)2 · 2H2O
Alβ“˜ EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
Alβ“˜ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Alβ“˜ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Alβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Alβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
SiSilicon
Siβ“˜ AfwilliteCa3(HSiO4)2 · 2H2O
Siβ“˜ AndraditeCa3Fe23+(SiO4)3
Siβ“˜ BrauniteMn2+Mn63+(SiO4)O8
Siβ“˜ BultfonteiniteCa2(HSiO4)F · H2O
Siβ“˜ BustamiteCaMn2+(Si2O6)
Siβ“˜ CaryopiliteMn32+Si2O5(OH)4
Siβ“˜ Quartz var. ChalcedonySiO2
Siβ“˜ FriedeliteMn82+Si6O15(OH,Cl)10
Siβ“˜ GageiteMn21(Si4O12)2O3(OH)20
Siβ“˜ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Siβ“˜ HenritermieriteCa3Mn23+(SiO4)2[◻(OH)4]
Siβ“˜ Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
Siβ“˜ InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Siβ“˜ OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
Siβ“˜ OyeliteCa10Si8B2O29 · 12.5H2O
Siβ“˜ PoldervaartiteCaCa[SiO3(OH)](OH)
Siβ“˜ QuartzSiO2
Siβ“˜ RuiziteCa2Mn23+[Si4O11(OH)2](OH)2 · 2H2O
Siβ“˜ SugiliteKNa2Fe23+Li3[Si12O30]
Siβ“˜ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Siβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Siβ“˜ Gageite-2M(Mn,Mg,Zn)42Si16O54(OH)40
PPhosphorus
Pβ“˜ GatehouseiteMn52+(PO4)2(OH)4
SSulfur
Sβ“˜ BaryteBaSO4
Sβ“˜ CelestineSrSO4
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ CreediteCa3SO4Al2F8(OH)2 · 2H2O
Sβ“˜ EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
Sβ“˜ GalenaPbS
Sβ“˜ GypsumCaSO4 · 2H2O
Sβ“˜ JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2O
Sβ“˜ MarcasiteFeS2
Sβ“˜ PyriteFeS2
Sβ“˜ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Sβ“˜ SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
Sβ“˜ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
ClChlorine
Clβ“˜ FriedeliteMn82+Si6O15(OH,Cl)10
KPotassium
Kβ“˜ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Kβ“˜ Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
Kβ“˜ SugiliteKNa2Fe23+Li3[Si12O30]
Kβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
CaCalcium
Caβ“˜ AfwilliteCa3(HSiO4)2 · 2H2O
Caβ“˜ AndraditeCa3Fe23+(SiO4)3
Caβ“˜ AragoniteCaCO3
Caβ“˜ BultfonteiniteCa2(HSiO4)F · H2O
Caβ“˜ BustamiteCaMn2+(Si2O6)
Caβ“˜ CalciteCaCO3
Caβ“˜ CreediteCa3SO4Al2F8(OH)2 · 2H2O
Caβ“˜ EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
Caβ“˜ GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
Caβ“˜ GoweriteCa[B5O8(OH)][B(OH)3] · 3H2O
Caβ“˜ GypsumCaSO4 · 2H2O
Caβ“˜ HenritermieriteCa3Mn23+(SiO4)2[◻(OH)4]
Caβ“˜ Hydroxyapophyllite-(K)KCa4(Si8O20)(OH,F) · 8H2O
Caβ“˜ InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Caβ“˜ JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2O
Caβ“˜ KutnohoriteCaMn2+(CO3)2
Caβ“˜ OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
Caβ“˜ OyeliteCa10Si8B2O29 · 12.5H2O
Caβ“˜ PoldervaartiteCaCa[SiO3(OH)](OH)
Caβ“˜ PortlanditeCa(OH)2
Caβ“˜ RuiziteCa2Mn23+[Si4O11(OH)2](OH)2 · 2H2O
Caβ“˜ SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
Caβ“˜ ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
Caβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Caβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
MnManganese
Mnβ“˜ Bixbyite-(Mn)Mn23+O3
Mnβ“˜ BrauniteMn2+Mn63+(SiO4)O8
Mnβ“˜ BustamiteCaMn2+(Si2O6)
Mnβ“˜ CaryopiliteMn32+Si2O5(OH)4
Mnβ“˜ FriedeliteMn82+Si6O15(OH,Cl)10
Mnβ“˜ GageiteMn21(Si4O12)2O3(OH)20
Mnβ“˜ GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
Mnβ“˜ GroutiteMn3+O(OH)
Mnβ“˜ HausmanniteMn2+Mn23+O4
Mnβ“˜ HenritermieriteCa3Mn23+(SiO4)2[◻(OH)4]
Mnβ“˜ InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Mnβ“˜ JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2O
Mnβ“˜ KutnohoriteCaMn2+(CO3)2
Mnβ“˜ ManganiteMn3+O(OH)
Mnβ“˜ OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
Mnβ“˜ PyrochroiteMn(OH)2
Mnβ“˜ RhodochrositeMnCO3
Mnβ“˜ RuiziteCa2Mn23+[Si4O11(OH)2](OH)2 · 2H2O
Mnβ“˜ ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Mnβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Mnβ“˜ Gageite-2M(Mn,Mg,Zn)42Si16O54(OH)40
Mnβ“˜ GatehouseiteMn52+(PO4)2(OH)4
FeIron
Feβ“˜ AndraditeCa3Fe23+(SiO4)3
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ GlauconiteK0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Feβ“˜ HematiteFe2O3
Feβ“˜ InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Feβ“˜ Lepidocrociteγ-Fe3+O(OH)
Feβ“˜ MarcasiteFeS2
Feβ“˜ PyriteFeS2
Feβ“˜ SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
Feβ“˜ SugiliteKNa2Fe23+Li3[Si12O30]
Feβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ MalachiteCu2(CO3)(OH)2
ZnZinc
Znβ“˜ Gageite-2M(Mn,Mg,Zn)42Si16O54(OH)40
SrStrontium
Srβ“˜ CelestineSrSO4
Srβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
BaBarium
Baβ“˜ BaryteBaSO4
Baβ“˜ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
PbLead
Pbβ“˜ GalenaPbS

Other Regions, Features and Areas containing this locality

Africa
African PlateTectonic Plate
South Africa

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References

https://en.wikipedia.org/wiki/Nchwaning_mine
Mining Annual Review (1985): 90.
Rocks & Minerals (1986): 61: 7.
Von Bezing, K.L., Dixon, R.D., Pohl, D., Cavallo, G. (1991) The Kalahari (Afrique du Sud) manganese field: an update. The Mineralogical Record: 22(3): 279-302.
Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, Linden .
Gutzmer, J. (1996) Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa (Doctoral dissertation, Rand Afrikaans University).
Cairncross, B., Beukes, N. and Gutzmer, J. (1997) The Manganese Adventure – The South African Manganese Fields. Associated Ore & Metal Corporation Limited, Johannesburg, Republic of South Africa.
www.edu.uni-klu.ac.at (2000) http://www.edu.uni-klu.ac.at/~mmessner/sites/rsa/kuruman/kuruman.htm
Cairncross, Bruce (2004) Field Guide to Rocks & Minerals of Southern Africa. 288pp.
Cairncross, Bruce, Balayer, P., Bruce,, , (2007) Neufund: Shigait aus den Kalahari-Manganfeldern, SΓΌdafrika. Lapis, 32 (4) 23-26
Cairncross, B., and Beukes, N. J. (2013) The Kalahari Manganese Field, the adventure continues. Struik Nature Publishers, Cape Town, South Africa.
Cairncross, Bruce (2016) Connoisseur's Choice: Shigaite, Kalahari Manganese Field, Northern Cape Province, South Africa. Rocks & Minerals, 91 (2) 150-153 doi:10.1080/00357529.2016.1113466
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