Meteoritical Bulletin: Entry for Calama 374

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Calama 374

Basic information

Name: Calama 374
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2022
Country: Chile
Mass: 15 g

Classification
history:

Recommended:

H3 [explanation]

This is 1 of 690 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

Writeup

Writeup from MB 112:

Calama 374 22°28.84’S, 68°44.91’W

Antofagasta, Chile

Find: 20 Nov 2022

Classification: Ordinary chondrite (H3)

Petrography: The meteorite is composed of well lineated chondrules, chondrule and mineral fragments and fine-grained clastic matrix. The chondrules are of BO, RO, RP, PO, POP, GO, GOP and minor CC types. Chondrule mesostasis contains isotropic glass. Olivine has sharp optical extinction.

Geochemistry: Mineral compositions and geochemistry: Olivine Fa_16.5±5.8(N=25); PMD Fa=35.4%; pyroxene Fs_8.7±6.0Wo_0.9±0.7(N=22)

Data from:
  MB112
  Table 0
  Line 0:

State/Prov/County:	Antofagasta
Date:	20 Nov 2022
Latitude:	22°28.84'S
Longitude:	68°44.91'W
Mass (g):	15
Pieces:	1
Class:	H3
Shock stage:	S1
Weathering grade:	W2
Fayalite (mol%):	16.5±5.8 (N=25)
Ferrosilite (mol%):	8.7±6.0 (N=22)
Wollastonite (mol%):	0.9±0.7 (N=22)
Classifier:	Lorenz C. A., Vernad
Type spec mass (g):	3
Type spec location:	Vernad.
Main mass:	Mr. T. Kryachko, [email protected]
Finder:	Mr. T. Kryachko
Comments:	Field name is 9-47; 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' 50"S, 68° 44' 55"W)

Statistics:
This is 1 of 2687 approved meteorites from Antofagasta, Chile (plus 9 unapproved names) (plus 1 impact crater)
This is 1 of 2716 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater)

Proximity search:

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