Meteoritical Bulletin: Entry for Calama 172

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 18 May 2022
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Calama 172

Basic information

Name: Calama 172
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Chile
Mass: 95 g

Classification
history:

Recommended:

L6-melt breccia [explanation]

This is 1 of 66 approved meteorites classified as L6-melt breccia. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 6 Oct 2021

Writeup

Writeup from MB 110:

Calama 172 22°26.88’S, 68°38.46’W

Antofagasta, Chile

Find: 19 Mar 2021

Classification: Ordinary chondrite (L6, melt breccia)

Petrography: The meteorite has brecciated texture. The clasts (up to 2 cm in size) comprised by coarse-grained intensively recrystallized chondritic rock (type 6) are joined by melt rock matrix (30 vol.%) containing mineral fragments and metal and troilite droplets. Olivine in clasts has strong undulatory extinction; rare olivine grains have weak mosaicism.

Data from:
  MB110
  Table 0
  Line 0:

State/Prov/County:	Antofagasta
Date:	19 Mar 2021
Latitude:	22°26.88'S
Longitude:	68°38.46'W
Mass (g):	95
Pieces:	1
Class:	L6-melt breccia
Shock stage:	S3
Weathering grade:	W1
Fayalite (mol%):	25.0±1.8 (N=13)
Ferrosilite (mol%):	21.2±1.3 (N=12)
Wollastonite (mol%):	1.4±0.3 (N=12)
Classifier:	Lorenz C. A., Vernad
Type spec mass (g):	28.6
Type spec location:	Vernad
Main mass:	Mr. T. Kryachko, bredfild@mail.ru
Finder:	Mr. T. Kryachko
Comments:	Field name is 7-25; 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)

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Chile

Coordinates:
Recommended::	(22° 26' 53"S, 68° 38' 28"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:

Direct link to this page