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Calama 391
Basic information Name: Calama 391
     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 3 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  H3
Recommended:  H3    [explanation]

This is 1 of 714 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 7 May 2023
Writeuphelp
Writeup from MB 112:

Calama 391        22°23.28’S, 68°37.14’W

Antofagasta, Chile

Find: 26 Nov 2022

Classification: Ordinary chondrite (H3)

Petrography: The meteorite is composed of chondrules, chondrule fragments and fine-grained clastic matrix impregnated by iron hydroxide. Well-lineated chondrules of 120-800 μm in diameter have isotropic mesostasis. The chondrules are of PO, POP, BO, ROP, RP and GO types. Olivine has weak undulatory extinction and irregular fractures

Geochemistry: Mineral compositions and geochemistry: Olivine: Fa19.5±4.4 (N=31), PMD Fa=22.4%; pyroxene Fs11.1±6.8Wo1.2±0.8 (N=25)

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:26 Nov 2022
Latitude:22°23.28'S
Longitude:68°37.14'W
Mass (g):3
Pieces:1
Class:H3
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):19.5±4.4 (N=31)
Ferrosilite (mol%):11.1±6.8 (N=25)
Wollastonite (mol%):1.2±0.8 (N=25)
Classifier:Lorenz C. A., Vernad
Type spec mass (g):1.4
Type spec location:Vernad.
Main mass:Mr. T. Kryachko, [email protected]
Finder:Mr. T. Kryachko
Comments:Field name is 9-103; 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° 23' 17"S, 68° 37' 8"W)

Statistics:
     This is 1 of 3535 approved meteorites from Antofagasta, Chile (plus 13 unapproved names) (plus 1 impact crater)
     This is 1 of 3564 approved meteorites from Chile (plus 14 unapproved names) (plus 1 impact crater)
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