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Calama 255 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Calama 255 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2022 Country: Chile Mass: 12 g | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 840 approved meteorites (plus 2 unapproved names) classified as L3. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 23 Jul 2022 | ||||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Calama 255 22°29.01’S, 68°50.23’W Antofagasta, Chile Find: 30 Apr 2022 Classification: Ordinary chondrite (L3) Petrography: The meteorite has chondritic texture and is comprised by chondrules, chondrule fragments and mineral grains with interstitial fine-grained clastic matrix impregnated by Fe-hydroxide. The chondrules are well outlined and have an average diameter 636±337 µm (N=63). The chondrules mostly are of BO, BP, PO, POP, ROP, RP types. The main phases are olivine, pyroxene, feldspatic glass, Fe,Ni iron (kamacite ant taenite) and troilite; chromite is accessory. Chondrule mesostasis is glassy. Olivine grains have sharp or weak undulatory optical extinction and rare irregular fracturing. Geochemistry: Mineral compositions and geochemistry: Olivine Fa23.6±7.7 (N=31); PMD Fa=23.7%; Pyroxene Fs9.2±6.1 Wo1.2±1.0 (N=24) | ||||||||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016) |
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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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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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