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Calama 322
Basic information Name: Calama 322
     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 6.1 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  H3
Recommended:  H3    [explanation]

This is 1 of 710 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 4 Mar 2023
Writeuphelp
Writeup from MB 112:

Calama 322        22°28.69’S, 68°46.88’W

Antofagasta, Chile

Find: 15 Nov 2022

Classification: Ordinary chondrite (H3)

Petrography: The meteorite has chondritic structure and is composed of distinct chondrules of PO, POP, GO, minor BO and CC types. Average chondrule diameter is 305±155 µm (N=135). Chondrule mesostasis is isotropic glass. A fine-grained clastic matrix is impregnated by Fe,Ni hydroxide. Olivine has sharp optical extinction and irregular fractures. Widely occurred Fe,Ni hydroxide fills the numerous fractures and interranular spaces of the rock.

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:15 Nov 2022
Latitude:22°28.69'S
Longitude:68°46.88'W
Mass (g):6.1
Pieces:1
Class:H3
Shock stage:S1
Weathering grade:W4
Fayalite (mol%):18.6±9.3 (N=36)
Ferrosilite (mol%):9.8±6.8 (N=18)
Wollastonite (mol%):0.9±0.8 (N=18)
Classifier:Lorenz C. A., Vernad
Type spec mass (g):2.3
Type spec location:Vernad.
Main mass:Mr. T. Kryachko, [email protected]
Finder:Mr. T. Kryachko
Comments:PMD Fa=39.5; Field name is 9-5; 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° 28' 41"S, 68° 46' 53"W)

Statistics:
     This is 1 of 3440 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater)
     This is 1 of 3469 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)
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