Meteoritical Bulletin: Entry for Calama 293

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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: 77.4 g

Classification
history:

Recommended:

H3 [explanation]

This is 1 of 682 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

Writeup

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 2514 approved meteorites from Antofagasta, Chile (plus 10 unapproved names) (plus 1 impact crater)
This is 1 of 2543 approved meteorites from Chile (plus 16 unapproved names) (plus 1 impact crater)

Proximity search:

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