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Calama 337
Basic information Name: Calama 337
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2022
Country: Chile
Mass:help 27.9 g
Classification
  history:
Recommended:  L3    [explanation]

This is 1 of 824 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 4 Mar 2023
Writeuphelp
Writeup from MB 112:

Calama 337        22°29.19’S, 68°44.32’W

Antofagasta, Chile

Find: 15 Nov 2022

Classification: Ordinary chondrite (L3)

Petrography: The meteorite has chondritic structure and is composed of distinct chondrules of BO, BOP, RP, PO, POP, GO and CC types joined together by fine-grained silicate matrix. Average chondrule diameter is 644±422 µm (N=115). The chondrule mesostasis is isotropic glass. The Fe,Ni metal (1.2 vol. %) and troilite form irregular aggregates or isolated grains of 300-500 µm in size. Troilite forms the rims around the some chondrules and metal grains as well. Olivine has weak undulatory extinction and irregular fracturing. Minor Fe,Ni hydroxide fills the thin fractures.

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:15 Nov 2022
Latitude:22°29.19'S
Longitude:68°44.32'W
Mass (g):27.9
Pieces:1
Class:L3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):20.9±5.3 (N=23)
Ferrosilite (mol%):13.7±6.6 (N=27)
Wollastonite (mol%):1.1±0.8 (N=27)
Classifier:Lorenz C. A., Vernad
Type spec mass (g):5.6
Type spec location:Vernad.
Main mass:Mr. T. Kryachko, [email protected]
Finder:Mr. T. Kryachko
Comments:PMD Fa=20.9%; Field name is 9-1; analyst T. Kryachko (Technograd, Moscow); 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. 112, in preparation (2023)
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Geography:

Chile
Coordinates:
     Recommended::   (22° 29' 11"S, 68° 44' 19"W)

Statistics:
     This is 1 of 3160 approved meteorites from Antofagasta, Chile (plus 11 unapproved names) (plus 1 impact crater)
     This is 1 of 3189 approved meteorites from Chile (plus 14 unapproved names) (plus 1 impact crater)
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