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Northwest Africa 13300 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13300 This is an OFFICIAL meteorite name. Abbreviation: NWA 13300 Observed fall: No Year found: 2019 Country: Algeria Mass: 20.5 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 8876 approved meteorites (plus 5 unapproved names) classified as L5. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||
Comments: | Approved 2 May 2020 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13300 (NWA 13300) Ouargla, Algeria Purchased: 2019 Classification: Ordinary chondrite (L5) History: The 20.5 g fragment was found by a Bedouin named Bobakar in Ouargla, Algeria, in February of 2018. Dave Lehman and his partner acquired the sample in 2019. Physical characteristics: Sample is ovoid in shape and has a dark-brown, wind-ablated surface. The interior of the stone is crystalline and shows sparse weakly discernible chondrules and fragments. Petrography: Classification and Description (A. Love, App): Sample has a recrystallized chondritic texture composed of indistinct chondrules and secondary plagioclase with an avg. crystal length of 39µm (n=18). Chondrules have an avg. apparent diameter 1028µm (n=12). Additional minerals are chromite, apatite, secondary calcite. Geochemistry: (A. Love, App) Olivine (Fa25.2±1.3, Fe/Mn=46.4±2.4, n=3), low-Ca pyroxene (Fs21.6±0.3Wo1.4±0.1, n=3). Classification: Ordinary chondrite (L5 C-S2 W3) Based on compositions of ferromagnesian minerals, sample is an L chondrite. Based on grainsize of secondary plagioclase this is an L5. Specimens: Dave Lehman and his partner hold the main mass. A 4.37 g slice and polished mount are on deposit at App. | ||||||||||||||||||||||||||||||||
Data from: MB109 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 Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 49 approved meteorites from Ouargla, Algeria (plus 1 unapproved name) This is 1 of 1344 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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