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| Calama 174 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Calama 174 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2021 Country: Chile Mass:  560 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 2854 approved meteorites (plus 2 unapproved names) classified as LL6. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||
| Comments: | Approved 6 Oct 2021 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Calama 174 22°10.78’S, 68°37.15’W Antofagasta, Chile Find: 23 Mar 2021 Classification: Ordinary chondrite (LL6) Petrography: (C. Lorenz, Vernad) The meteorite has brecciated texture composed by clasts (40 vol.%) and matrix (60 vol.%). The contacts of clasts and matrix are well defined. The clasts comprise coarse-grained (grain size up to 1 mm), intensively recrystallized chondritic rock with single large recrystallized chondrule relics. Olivine, pyroxene and feldspar are main phases, Fe,Ni metal, troilite, chromite and Ca-phosphate are accessories. Feldspar grains are up to 300 µm in size. The matrix is fine-grained (grain size 50-100 µm) equigranular recrystallized rock. Iron hydroxides are widely distributed on the grain contacts and fill the fractures in the meteorite. | ||||||||||||||||||||||||||||||||||||
| Data from: MB110 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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| References: | Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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| Photos: |
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Geography:
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Statistics: This is 1 of 2272 approved meteorites from Antofagasta, Chile (plus 8 unapproved names) (plus 1 impact crater) This is 1 of 2301 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||
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