Meteoritical Bulletin: Entry for Calama 218

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Calama 218

Basic information

Name: Calama 218
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Chile
Mass: 50 g

Classification
history:

Recommended:

L3 [explanation]

This is 1 of 783 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 24 Dec 2021

Writeup

Writeup from MB 110:

Calama 218 22°23.31’S, 68°38.29’W

Antofagasta, Chile

Find: 28 Mar 2021

Classification: Ordinary chondrite (L3)

Petrography: The meteorite is a monomict breccia composes of well-defined chondrules up to 2 mm in diameter, chondrule fragments and mineral grains settled in more fine grained clastic matrix formed by the same material. The chondrule mesostasis is glassy and partially devitrified; olivine has irregular fractures and weak undulatory extinction.

Geochemistry: Mineral compositions and geochemistry: Olivine Fa_24.4±5.3(N=28); PMD Fa=11.2%; pyroxene Fs_13.8Wo_1.1±0.6, range Fs_1.6-27.3(N=22).

Data from:
  MB110
  Table 0
  Line 0:

State/Prov/County:	Antofagasta
Date:	28 Mar 2021
Latitude:	22°23.31'S
Longitude:	68°38.29'W
Mass (g):	50
Pieces:	1
Class:	L3
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	24.4±5.3 (N=28)
Ferrosilite (mol%):	13.8 (1.6-27.3, N=22)
Wollastonite (mol%):	1.1±0.6 (N=22)
Classifier:	Lorenz C. A., Vernad
Type spec mass (g):	11.3
Type spec location:	Vernad
Main mass:	Mr. T. Kryachko, bredfild@mail.ru
Finder:	Mr. T. Kryachko
Comments:	Field name is 7-58; analyst A. Agakhanov (Fersman Mineralogical Museum), T. Kryachko; 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. 110, in preparation (2021)

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Geography:

Chile

Coordinates:
Recommended::	(22° 23' 19"S, 68° 38' 17"W)

Statistics:
This is 1 of 2243 approved meteorites from Antofagasta, Chile (plus 6 unapproved names) (plus 1 impact crater)
This is 1 of 2272 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)

Proximity search:

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