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Calama 218
Basic information Name: Calama 218
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Chile
Mass:help 50 g
Classification
  history:
Recommended:  L3    [explanation]

This is 1 of 763 approved meteorites (plus 1 unapproved name) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 24 Dec 2021
Writeuphelp
Writeup from MB 110:

Calama 218        22°23.31’S, 68°38.29’W

Antofagasta, Chile

Find: 28 Mar 2021

Classification: Ordinary chondrite (L3)

Petrography: The meteorite is a monomict breccia composes of well-defined chondrules up to 2 mm in diameter, chondrule fragments and mineral grains settled in more fine grained clastic matrix formed by the same material. The chondrule mesostasis is glassy and partially devitrified; olivine has irregular fractures and weak undulatory extinction.

Geochemistry: Mineral compositions and geochemistry: Olivine Fa24.4±5.3 (N=28); PMD Fa=11.2%; pyroxene Fs13.8Wo1.1±0.6, range Fs1.6-27.3 (N=22).

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:28 Mar 2021
Latitude:22°23.31'S
Longitude:68°38.29'W
Mass (g):50
Pieces:1
Class:L3
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):24.4±5.3 (N=28)
Ferrosilite (mol%):13.8 (1.6-27.3, N=22)
Wollastonite (mol%):1.1±0.6 (N=22)
Classifier:Lorenz C. A., Vernad
Type spec mass (g):11.3
Type spec location:Vernad
Main mass:Mr. T. Kryachko, bredfild@mail.ru
Finder:Mr. T. Kryachko
Comments:Field name is 7-58; analyst A. Agakhanov (Fersman Mineralogical Museum), T. Kryachko; submitted by Lorenz C.A., Vernad
Institutions
   and collections
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:

Chile
Coordinates:
     Recommended::   (22° 23' 19"S, 68° 38' 17"W)

Statistics:
     This is 1 of 2160 approved meteorites from Antofagasta, Chile (plus 6 unapproved names) (plus 1 impact crater)
     This is 1 of 2189 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)
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