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Calama 293
Basic information Name: Calama 293
     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 77.4 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 4 Mar 2023
Writeuphelp
Writeup from MB 112:

Calama 293        22°25.38’S, 68°44.65’W

Antofagasta, Chile

Find: 28 Apr 2022

Classification: Ordinary chondrite (H3)

Petrography: The meteorite has chondritic structure and is composed of distinct chondrules (D=438±225, N=100), chondrule fragments and mineral grains joined together by fine-grained clastic matrix impregnated by Fe,Ni hydroxide. The PO, POP, RP, RO, GO, BO, CC chondrules are present. Olivine has sharp optical extinction and irregular fractures.

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:28 Apr 2022
Latitude:22°25.38'S
Longitude:68°44.65'W
Mass (g):77.4
Pieces:1
Class:H3
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):17.9±6.8 (N=34)
Ferrosilite (mol%):12.9±4.6 (N=22)
Wollastonite (mol%):1.0±0.7 (N=22)
Classifier:Lorenz C. A., Vernad
Type spec mass (g):15.5
Type spec location:Vernad.
Main mass:Mr. T. Kryachko, [email protected]
Finder:Mr. T. Kryachko
Comments:PMD Fa=38.2 %; Field name is 8-41; 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° 25' 23"S, 68° 44' 39"W)

Statistics:
     This is 1 of 3536 approved meteorites from Antofagasta, Chile (plus 13 unapproved names) (plus 1 impact crater)
     This is 1 of 3565 approved meteorites from Chile (plus 14 unapproved names) (plus 1 impact crater)
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