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Nkumbwa Hill Carbonatite (Nkombwa Hill Carbonatite), Isoka, Isoka District, Muchinga Province, Zambiai
| Regional Level Types | |
|---|---|
| Nkumbwa Hill Carbonatite (Nkombwa Hill Carbonatite) | - not defined - |
| Isoka | - not defined - |
| Isoka District | District |
| Muchinga Province | Province |
| Zambia | Country |
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Latitude & Longitude (WGS84):
10° 10' South , 32° 52' East
Latitude & Longitude (decimal):
Köppen climate type:
Carbonatite plug, consisting of fairly homogeneous white, medium- to fine-grained ankeritic dolomite carbonatite (rauhaugite) which is cut by sills and dykes, 1 to 2 m wide, of medium- to coarse-grained ferrocarbonatite. The west-central part of the plug is intensely silicified. The Nkombwa Hill carbonatite is deficient in calcium, as evidenced by the absence of calcite carbonatite, but has high magnesium and fluorine contents, reflected in the abundance of dolomite and phlogopite, and the presence of fluorite, apatite, sellaite, and isokite.
Located about 15 miles east of Isoka.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
18 valid minerals. 1 (TL) - type locality of valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 |
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Bastnäsite-(Ce) Formula: Ce(CO3)F |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Daqingshanite-(Ce) Formula: (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x References: |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Fluorstrophite Formula: SrCaSr3(PO4)3F |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ Isokite (TL) Formula: CaMg(PO4)F Type Locality: |
| ⓘ Magnesite Formula: MgCO3 |
| ⓘ Monazite-(Ce) Formula: Ce(PO4) |
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ 'Pyrochlore Group' Formula: A2Nb2(O,OH)6Z |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sellaite Formula: MgF2 |
| ⓘ Siderite Formula: FeCO3 |
| ⓘ Strontianite Formula: SrCO3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Sellaite | 3.AB.15 | MgF2 |
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | 'Pyrochlore Group' | 4.00. | A2Nb2(O,OH)6Z |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Magnesite | 5.AB.05 | MgCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Strontianite | 5.AB.15 | SrCO3 |
| ⓘ | Bastnäsite-(Ce) | 5.BD.20a | Ce(CO3)F |
| ⓘ | Daqingshanite-(Ce) | 5.BF.15 | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Monazite-(Ce) | 8.AD.50 | Ce(PO4) |
| ⓘ | Isokite (TL) | 8.BH.10 | CaMg(PO4)F |
| ⓘ | Fluorstrophite | 8.BN.05 | SrCaSr3(PO4)3F |
| Group 9 - Silicates | |||
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| Unclassified | |||
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| C | Carbon | |
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘ Bastnäsite-(Ce) | Ce(CO3)F |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Magnesite | MgCO3 |
| C | ⓘ Siderite | FeCO3 |
| C | ⓘ Strontianite | SrCO3 |
| O | Oxygen | |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Bastnäsite-(Ce) | Ce(CO3)F |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Isokite | CaMg(PO4)F |
| O | ⓘ Magnesite | MgCO3 |
| O | ⓘ Monazite-(Ce) | Ce(PO4) |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Fluorstrophite | SrCaSr3(PO4)3F |
| O | ⓘ Strontianite | SrCO3 |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | Fluorine | |
| F | ⓘ Bastnäsite-(Ce) | Ce(CO3)F |
| F | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Isokite | CaMg(PO4)F |
| F | ⓘ Sellaite | MgF2 |
| F | ⓘ Fluorstrophite | SrCaSr3(PO4)3F |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Isokite | CaMg(PO4)F |
| Mg | ⓘ Magnesite | MgCO3 |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Mg | ⓘ Sellaite | MgF2 |
| Al | Aluminium | |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| P | Phosphorus | |
| P | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| P | ⓘ Isokite | CaMg(PO4)F |
| P | ⓘ Monazite-(Ce) | Ce(PO4) |
| P | ⓘ Fluorstrophite | SrCaSr3(PO4)3F |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Isokite | CaMg(PO4)F |
| Ca | ⓘ Fluorstrophite | SrCaSr3(PO4)3F |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Sr | Strontium | |
| Sr | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| Sr | ⓘ Fluorstrophite | SrCaSr3(PO4)3F |
| Sr | ⓘ Strontianite | SrCO3 |
| Nb | Niobium | |
| Nb | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Ba | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| La | Lanthanum | |
| La | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| Ce | Cerium | |
| Ce | ⓘ Bastnäsite-(Ce) | Ce(CO3)F |
| Ce | ⓘ Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
| Ce | ⓘ Monazite-(Ce) | Ce(PO4) |
Geochronology
Mineralization age: Neoproterozoic : 704 Ma to 654 MaImportant note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Precambrian | ||||||||||||||||
| Proterozoic | ||||||||||||||||
| Neoproterozoic | ||||||||||||||||
| Cryogenian |
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Other Regions, Features and Areas containing this locality
AfricaContinent
- East African Rift System (EARS)Zone (Tectonic)
African PlateTectonic Plate
- Bangweulu BlockOrogenic Belt
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
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References
Deans, T., McConnell, J. D. C., Pickup, R. (1955) Isokite, CaMgPO4F, a new mineral from Northern Rhodesia. Mineralogical Magazine and Journal of the Mineralogical Society, 30 (230) 681-690 doi:10.1180/minmag.1955.030.230.01
Nkumbwa Hill Carbonatite, Isoka, Isoka District, Muchinga Province, Zambia