Meteoritical Bulletin: Entry for Calama 391

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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: 3 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 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: Fa_19.5±4.4(N=31), PMD Fa=22.4%; pyroxene Fs_11.1±6.8Wo_1.2±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 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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