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Calama 199 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Calama 199 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2020 Country: Chile Mass: 295 g | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 82 approved meteorites classified as CK3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 12 Feb 2022 | ||||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Calama 199 22°19’02"S, 68°41’50"W Antofagasta, Chile Find: 2020 Classification: Carbonaceous chondrite (CK3) History: The stone was found by Dario Ruiz in the Atacama desert in 2021 Physical characteristics: Black stone. Cut face reveals a dark-gray interior with mm-sized chondrules and CAIs set in an abundant brown matrix. Petrography: (J. Gattacceca, CEREGE) Chondrite with mm-sized chnodrules and mm-sized CAIs set in about 50 vol% of recrystallized matrix. Olivine is the dominant mineral. Olivine in chondrules is zoned with Fe-poor cores. Plagioclase in the matrix are up to 100 µm. Magnetite is abundant. Rare sulfides, to 2 µm, associated with magnetite. Geochemistry: Matrix olivine Fa31.9±1.3, NiO 0.31±0.13 wt% (n=5). Chondrule olivine Fa22.4±9.0, range Fa5.3-32.0, Fa PMD 36%, NiO 0.21±0.14 wt% (n=11). Ca-pyroxene Fs1.2±0.3Wo37.2±2.4 (n=3). Low-Ca pyroxene Fs4.2Wo3.2 (n=1). Plagioclase An19.7Ab74.9Or5.3 (n=1). Magnetite Cr2O3 content is 3.56±0.35 wt%. Classification: Carbonaceous chondrite (CK3). CK group based on mineralogy, texture and Cr content of magnetite. Type 3 based on the unequilibrated chondrule olivine contrasting with the recrystallized matrix that has almost equilibrated olivine and contains plagioclase, as described in Torrano et al. (2020). Specimens: Type specien at CEREGE. Main mass with Dario Ruiz. | ||||||||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB111 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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos: |
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Geography: |
Statistics: This is 1 of 3417 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater) This is 1 of 3446 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||
Proximity search: | |||||||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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