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| Ouargla 004 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Ouargla 004 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2021 Country: Algeria Mass:  1046 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 106 approved meteorites classified as Lunar. [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 11 Nov 2021 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Ouargla 004 31º14.2913’N, 4º46.7077’E Ouargla, Algeria Find: 2021 Classification: Lunar meteorite History: Nomads discovered black samples that did not correspond to the landscape of the area, marked coordinates and picked them up thinking they were possibly meteorites. Carlos Muñecas purchased the samples from a dealer in Algeria in July 2021. Physical characteristics: Samples are irregularly shaped and have a glossy black exterior devoid of fusion crust. A cut and polished face shows the interior is breccia of clasts and small FeNi grains (<1vol%). Petrography: Description and classification (A. Love, App): Sample is a fine-grained breccia composed of mm-sized rounded-angular lithic and mineral fragments set in a flow-textured glassy melt. Lithic clasts are feldspathic breccias, poikilitic norite, troctolite and rare ophitic-textured clasts. Additional minerals are: silica polymorph, spinel, FeNi metal grains, chromite, troilite and ilmenite. Geochemistry: (A. Love, App) Olivine (Fa31.3±9.4, Fe/Mn=81-109, n=24); low Ca pyroxene (Fs20.0±4.2Wo4.1±0.5, Fe/Mn=47-59, n=8); pigeonite (Fs29.6±2.9Wo10.3±3.0, Fe/Mn=46-58, n=17); high Ca Pyroxene (Fs16.5±4.0Wo40.6±3.2, Fe/Mn=39-70, n=9); plagioclase (An97.0±1.0Or0.3±0.1, n=16). Classification: (Lunar) feldspathic melt breccia. Based on textures and mineral compositions (Fe/Mn ratios of olivine and pyroxene and An content of plagioclase) sample is a polymict feldspathic melt breccia. Specimens: Carlos Muñecas (Expometeoritos) holds the main mass. A polished section and an end piece weighing 28.90 g are on deposit at App. | ||||||||||||||||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
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| Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) |
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| Catalogs: |
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| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:
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Statistics: This is 1 of 49 approved meteorites from Ouargla, Algeria (plus 1 unapproved name) This is 1 of 1358 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||||||||||
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| Revision history: |
This lists important revisions made to data for this record.
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