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Teghaza 001 Meteorite, Taoudénit Cercle, Taoudénit Region, Malii
| Regional Level Types | |
|---|---|
| Teghaza 001 Meteorite | Meteorite Fall Location |
| Taoudénit Cercle | Cercle |
| Taoudénit Region | Region |
| Mali | Country |
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Latitude & Longitude (WGS84):
23° 1' 54'' North , 4° 38' 46'' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Origin locality:
Deposit first discovered:
2022
Köppen climate type:
This Martian meteorite was found in early September 2022 during a meteorite search expedition north of the archaeological area of Taghaza, Mali, by Sahrawi meteorite hunters. The find site lies approximately 73 km SSE of Teghaza and 34 km ENE of Bir Chali. Eight similar-looking stones were recovered, the largest weighing 442 g. The stones lack fusion crust and show sandblasted desert surfaces with fine dark grains, while the larger pieces have caliche coatings where they were partly buried in desert pavement. Fresh breaks reveal pale and brown-orange grains, together with shiny, clear maskelynite.
Petrographic and geochemical study at the University of New Mexico showed the meteorite to consist chiefly of pyroxene and maskelynite, with minor ilmenite, Ti-Cr spinel, Fe-sulfide, silica, and Cl-rich apatite. Pyroxenes include equilibrated pigeonite and sub-calcic augite, some with exsolution lamellae and alteration phases in their cores composed of Fe- and Mn-oxide/hydroxide material. The meteorite is classified as a pyroxene-phyric shergottite, and its Martian origin is supported by pyroxene Fe/Mn ratios, maskelynite composition, and oxygen isotope values consistent with SNC meteorites. Elevated δ18O values are interpreted as the result of mixing between a primary Martian component and higher-δ18O alteration phases.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
7 valid minerals.
Meteorite/Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ Chlorapatite Formula: Ca5(PO4)3Cl |
| ⓘ Ferrihydrite Formula: Fe3+10O14(OH)2 |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ 'Maskelynite' |
| ⓘ Orthoclase Formula: K(AlSi3O8) |
| ⓘ Pigeonite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ Spinel Formula: MgAl2O4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Ferrihydrite | 4.FE.35 | Fe3+10O14(OH)2 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Chlorapatite | 8.BN.05 | Ca5(PO4)3Cl |
| Group 9 - Silicates | |||
| ⓘ | Pigeonite | 9.DA.10 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Maskelynite' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Ferrihydrite | Fe103+O14(OH)2 |
| O | Oxygen | |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Chlorapatite | Ca5(PO4)3Cl |
| O | ⓘ Ferrihydrite | Fe103+O14(OH)2 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Spinel | MgAl2O4 |
| Al | Aluminium | |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Al | ⓘ Spinel | MgAl2O4 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| P | Phosphorus | |
| P | ⓘ Chlorapatite | Ca5(PO4)3Cl |
| Cl | Chlorine | |
| Cl | ⓘ Chlorapatite | Ca5(PO4)3Cl |
| K | Potassium | |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Chlorapatite | Ca5(PO4)3Cl |
| Ca | ⓘ Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Ferrihydrite | Fe103+O14(OH)2 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Pigeonite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
Other Regions, Features and Areas containing this locality
AfricaContinent
- Sahara DesertDesert
African PlateTectonic Plate
- Taoudenni basinBasin
- West African CratonCraton
- Mali BasinShield
Northwest Africa MeteoritesGroup of Meteorite Fall Locations
West AfricaUN Subregion
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