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Diakon Commune, Bafoulabé Cercle, Kayes Region, Malii
| Regional Level Types | |
|---|---|
| Diakon Commune | Commune |
| Bafoulabé Cercle | Cercle |
| Kayes Region | Region |
| Mali | Country |
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Neighbouring regions:
Type:
Other/historical names associated with this locality:
Arrondissement of Diakon
Other Languages:
French:
Commune rurale de Diakon, Cercle de Bafoulabé, Kayes, Mali
Italian:
Diakon, circondario di Bafoulabé, regione di Kayes, Mali
Spanish:
Diakon, Círculo de Bafoulabé, Kayes, Malí
Dutch:
Diakon, Bafoulabé, Kayes, Mali
Finnish:
Diakon, Bafoulabén piiri, Kayesin alue, Mali
Greek:
Ντιακόν, Περιφέρεια Καγιές, Μάλι
Minnan / Hokkien-Taiwanese:
Diakon, Bafoulabé Khian, Kayes Khu, Mali
A rural commune belonging to the Bafoulabé Cercle, Kayes Region of Mali.
Gem mining area. A rush in 1994-1995 produced large amounts of yellowish green or brown "Mali garnet". However, the market was saturated, leaving the mines abandoned. Many diggings within a 15 km radius of the town of Diako.
Diako is the preferred spelling, since it is found on the 1:250,000 topographic map sheet. "Diakon" is the spelling in government documents for the commune.
Mali garnet occurs in contact-metamorphic skarn deposits in the Kayes Region of western Mali, near Diakon (approximately 130 km east of Kayes). This region is underlain by the Precambrian West African Craton and includes the Taoudeni Basin, a broad sedimentary basin filled with Cambrian to Mesozoic magnesian and dolomitic limestones. These carbonate sequences were intruded by NNW–SSE-trending Jurassic diabase dikes (ca. 200 Ma). Contact metamorphism along the margins of these intrusions produced garnet-bearing skarn assemblages, with gem-quality material recovered from both primary skarn occurrences and secondary alluvial deposits. This literature-reported setting is characterized by Fe³⁺–Al³⁺ substitution.
Gem mining area. A rush in 1994-1995 produced large amounts of yellowish green or brown "Mali garnet". However, the market was saturated, leaving the mines abandoned. Many diggings within a 15 km radius of the town of Diako.
Diako is the preferred spelling, since it is found on the 1:250,000 topographic map sheet. "Diakon" is the spelling in government documents for the commune.
Mali garnet occurs in contact-metamorphic skarn deposits in the Kayes Region of western Mali, near Diakon (approximately 130 km east of Kayes). This region is underlain by the Precambrian West African Craton and includes the Taoudeni Basin, a broad sedimentary basin filled with Cambrian to Mesozoic magnesian and dolomitic limestones. These carbonate sequences were intruded by NNW–SSE-trending Jurassic diabase dikes (ca. 200 Ma). Contact metamorphism along the margins of these intrusions produced garnet-bearing skarn assemblages, with gem-quality material recovered from both primary skarn occurrences and secondary alluvial deposits. This literature-reported setting is characterized by Fe³⁺–Al³⁺ substitution.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities21 valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ Albite Formula: Na(AlSi3O8) References: |
| ⓘ Almandine Formula: Fe2+3Al2(SiO4)3 Colour: black |
| ⓘ 'Amphibole Supergroup' Formula: AB2C5(T8O22)W2 |
| ⓘ 'Amphibole Supergroup var. Uralite' Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ Andradite Formula: Ca3Fe3+2(SiO4)3 |
| ⓘ Andradite var. Melanite Formula: Ca3Fe3+2(SiO4)3 |
| ⓘ 'Andradite-Grossular Series' Localities: Reported from at least 7 localities in this region. |
| ⓘ 'Apatite' Formula: Ca5(PO4)3A |
| ⓘ 'Apophyllite Group' Formula: AB4[Si8O20]X · 8H2O |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ 'Chlorite Group' |
| ⓘ Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 Localities: Habit: Hexagonal rosettes. Flat faces tend to bear feathery growth striations. Colour: Various shades of green. Occasionally silvery, or stained orange-brown from iron oxides. Description: Enormous crystals for a species that’s so often either massive or microscopic in habit, often serving as a backdrop for the eye-catching andradite-grossular specimens the region is known for. Individual floater rosettes can reach ~8x5 cm, and are typically associated with dodecahedrons or crusts of magnetite. Despite their tendency to become bruised in transit, the rosettes still make for great examples of clinochlore’s growth habits and can exhibit good luster and translucency. |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Localities: Reported from at least 16 localities in this region. |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 Localities: Reported from at least 8 localities in this region. |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 References: Jarod Janner collection & Terry Burtzlaff collection — visually identified small black, metallic, dodecahedral xls to ~1mm in the folds of clinochlore samples. Strongly magnetic, as independently confirmed by both of us. Identification: Visual Identification, Inferred (explain how) |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Native Iron Formula: Fe References: |
| ⓘ Pargasite Formula: NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 Localities: Reported from at least 15 localities in this region. |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ 'Pyroxene Group' Formula: ADSi2O6 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
| ⓘ Stellerite ? Formula: Ca4(Si28Al8)O72 · 28H2O References: |
| ⓘ Stilbite-Ca Formula: NaCa4(Si27Al9)O72 · 28H2O References: |
| ⓘ 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O Localities: Reported from at least 6 localities in this region. |
| ⓘ Titanite Formula: CaTiO(SiO4) |
| ⓘ Vesuvianite Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Iron | 1.AE.05 | Fe |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 9 - Silicates | |||
| ⓘ | Andradite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Andradite var. Melanite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
| ⓘ | Titanite | 9.AG.15 | CaTiO(SiO4) |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Vesuvianite | 9.BG.35 | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ | Pargasite | 9.DE.15 | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Stilbite-Ca | 9.GE.10 | NaCa4(Si27Al9)O72 · 28H2O |
| ⓘ | Stellerite ? | 9.GE.15 | Ca4(Si28Al8)O72 · 28H2O |
| Unclassified | |||
| ⓘ | 'Amphibole Supergroup' | - | AB2C5(T8O22)W2 |
| ⓘ | 'Apophyllite Group' | - | AB4[Si8O20]X · 8H2O |
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] · nH2O |
| ⓘ | 'Amphibole Supergroup var. Uralite' | - | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'Andradite-Grossular Series' | - | |
| ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| H | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| H | ⓘ Amphibole Supergroup var. Uralite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| H | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| H | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Amphibole Supergroup | AB2C5(T8O22)W2 |
| O | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| O | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| O | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| O | ⓘ Titanite | CaTiO(SiO4) |
| O | ⓘ Amphibole Supergroup var. Uralite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| O | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| O | ⓘ Andradite var. Melanite | Ca3Fe23+(SiO4)3 |
| O | ⓘ Andradite-Grossular Series | |
| O | ⓘ Pyroxene Group | ADSi2O6 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ Apatite | Ca5(PO4)3A |
| F | Fluorine | |
| F | ⓘ Amphibole Supergroup var. Uralite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Na | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Mg | Magnesium | |
| Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Mg | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| Al | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Al | ⓘ Amphibole Supergroup var. Uralite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Al | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Al | ⓘ Andradite-Grossular Series | |
| Si | Silicon | |
| Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Si | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| Si | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Si | ⓘ Titanite | CaTiO(SiO4) |
| Si | ⓘ Amphibole Supergroup var. Uralite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Si | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Si | ⓘ Andradite var. Melanite | Ca3Fe23+(SiO4)3 |
| Si | ⓘ Andradite-Grossular Series | |
| Si | ⓘ Pyroxene Group | ADSi2O6 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| P | Phosphorus | |
| P | ⓘ Apatite | Ca5(PO4)3A |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Amphibole Supergroup var. Uralite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Pargasite | NaCa2(Mg4Al)(Si6Al2)O22(OH)2 |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Stellerite | Ca4(Si28Al8)O72 · 28H2O |
| Ca | ⓘ Titanite | CaTiO(SiO4) |
| Ca | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Ca | ⓘ Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
| Ca | ⓘ Andradite var. Melanite | Ca3Fe23+(SiO4)3 |
| Ca | ⓘ Andradite-Grossular Series | |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| Ti | Titanium | |
| Ti | ⓘ Titanite | CaTiO(SiO4) |
| Ti | ⓘ Amphibole Supergroup var. Uralite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Fe | Iron | |
| Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Native Iron | Fe |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| Fe | ⓘ Andradite var. Melanite | Ca3Fe23+(SiO4)3 |
| Fe | ⓘ Andradite-Grossular Series | |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Fossils
This region is too big or complex to display the fossil list, try looking at smaller subregions.Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Diakon |
|---|---|
| Wikidata ID: | Q1759456 |
Localities in this Region
- Kayes Region
- Bafoulabé Cercle
- Diakon Commune
- Bafoulabé Cercle
Other Regions, Features and Areas that Intersect
AfricaContinent
African PlateTectonic Plate
- Taoudenni basinBasin
- West African CratonCraton
- Leo RiseShield
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Diakon Commune, Bafoulabé Cercle, Kayes Region, Mali