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Calama 075 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Calama 075 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2019 Country: Chile Mass: ![]() | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 672 approved meteorites (plus 2 unapproved names) classified as H3. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 12 Feb 2020 | ||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Calama 075 22°29.05’S, 68°48.17’W Antofagasta, Chile Find: 18 Oct 2019 Classification: Ordinary chondrite (H3) Petrography: (Lorenz C.A., Vernad) The meteorite comprises chondrules and chondrule fragments with minor interstitial fine-grained, and in places, devitrified melt matrix, metal-troilite and troilite-silicate aggregates, opaque and silicate melt veinlets and melt pockets. Chondrules are well lineated. Olivine has undulatory and mosaic optical extinction, planar fractures and planar deformation features. Feldspatic glass is mostly isotropic, in places partially anisotropic. Geochemistry: Mineral composition and geochemistry: Olivine Fa19.6±1.87, PMD Fa 9.5 (N=18); Pyroxene Fs15.9±0.98Wo1.21±0.31 (N=17); rare large chondrules are Mg-rich: Ol Fa5.02±2.52, PMD Fa 50 (N=19); Px Fs3.64±2.5Wo1.16±1.35 (N=4). | ||||||||||||||||||||||||||||||||||||
Data from: MB109 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 Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography:![]() |
Statistics: This is 1 of 2370 approved meteorites from Antofagasta, Chile (plus 9 unapproved names) (plus 1 impact crater) This is 1 of 2399 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||
Proximity search: |