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| El Médano 398 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: El Médano 398 This is an OFFICIAL meteorite name. Abbreviation: EM 398 Observed fall: No Year found: 2017 Country: Chile Mass:  165 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 639 approved meteorites (plus 1 unapproved name) classified as CO3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites | ||||||||||||||||||||||||||||||||||||
| Comments: | Approved 27 Mar 2019 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 108:
El Médano 398 (EM 398) 24°51’S, 70°32’W Antofagasta, Chile Find: 2017 Jun 19 Classification: Carbonaceous chondrite (CO3) Physical characteristics: Dark stone. Cut surface reveals dark interior and fresh metal. Petrography: Chondrite with small chondrules (~200 μm) set in an abundant fine-grained iron-rich matrix. Opaque minerals are mostly FeNi. Geochemistry: Olivine Fa14.5±5.7, Fa PMD 97%, range Fa0.8-44.5 (n=8). Cr2O3 in ferroan olivine 0.11±0.04 wt% (n=4). Orthopyroxene Fs1.4Wo1.1 (n=1). Defocused matrix analyses FeO 40.0 wt%, total 95.3 wt%. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.38. Classification: Carbonaceous chondrite (CO3) Specimens: Type specimen at CEREGE. Main mass at MMC. | ||||||||||||||||||||||||||||||||||||
| Data from: MB108 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) MMC: Museo del Meteorito, Tocopilla 401, San Pedro de Atacama, Chile. or Alonso de Ercilla 1250, La Herradura, Coquimbo, Chile, Chile; Website (institutional address; updated 11 Mar 2014) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography:
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Statistics: This is 1 of 2908 approved meteorites from Antofagasta, Chile (plus 10 unapproved names) (plus 1 impact crater) This is 1 of 2937 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||
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