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Andila | |||||||||||||||||||||||||||||||||||||||||
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Basic information | Name: Andila This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: Yes, confirmed fall Year fell: 2014 Country: Chad Mass: ![]() | ||||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 12583 approved meteorites (plus 8 unapproved names) classified as L6. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||||
Comments: | Approved 24 Dec 2018 | ||||||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 107:
Andila 12.79°N, 21.20° E Ouaddai, Chad Confirmed fall: 2014 Aug 21 Classification: Ordinary chondrite (L6) History: According to written report from the prefect of Abdi (Mr. Levy Dappina), on August 21, 2014, around 10 am, a series of strong detonations were heard over a distance of 70 km. Later the prefect got a phone call from the village of Andila (12 km W of Abdi) signaling that rocks fell from the sky. A police patrol went to the place and collected, the same day, a series of stones, said to have made a 10 cm hole in the soil and which produced smoke on impact. It is not clear if several individuals were collected or if the stones mentioned were fragments from a single individual. Based on the 171 g piece received by J.C. Doumnang from N’Djamena University, and a discussion with Mr. Dappina, the whole individual mass is estimated to about half a kg. The prefect later handed the stones (except the one that was brought to J.C. Doumnang for identification in 2018) to the governor of Ouaddaï, together with a report. J.C. Doumnang later brought the stone to CEREGE where it was classified. Physical characteristics: The 171 g fragment is one-third covered with black fusion crust. Fractures reveal a homogeneous, light gray, chondrule-bearing stone with a few faint rust stains. Some troilite aggregates. The material is quite fragile due to intense fracturing. Petrography: Recrystallized chondritic texture with average plagioclase size >50 μm, but relatively well-preserved chondrules. Main minerals are olivine, pyroxene, plagioclase, kamacite, troilite. Olivine shows sharp optical extinction. No oxidation products visible in section. Geochemistry: Olivine Fa25.5±0.2 (N=3), orthopyroxene Fs21.8±0.1Wo1.8±0.3 (N=3). Classification: Ordinary chondrite, L6 Specimens: 124 g fragment in N’Djamena University, type specimen (42 g) a polished section and a thin section at CEREGE. | ||||||||||||||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 10 Jun 2023) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Photos: |
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Geography:![]() |
Statistics: This is the only approved meteorite from Ouaddai, Chad This is 1 of 7 approved meteorites from Chad (plus 2 impact craters) | ||||||||||||||||||||||||||||||||||||||||
Proximity search: |