Meteoritical Bulletin: Entry for Calama 058

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 29 May 2023
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 058

Basic information

Name: Calama 058
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2016
Country: Chile
Mass: 140 g

Classification
history:

Recommended:

CR2 [explanation]

This is 1 of 186 approved meteorites classified as CR2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites

Comments:

Approved 1 Jan 2020

Writeup

Writeup from MB 109:

Calama 058 22°21.521’S, 068°35.335’W

Antofagasta, Chile

Find: 2016-Oct-17

Classification: Carbonaceous chondrite (CR2)

Physical characteristics: Sawn surface shows many large, well-defined chondrules mostly of 0.5-1 mm but also few up to 3 mm in a fine-grained dark matrix containing abundant phyllosilicates. Abundant metal blebs and metal decorating chondrule rims. Stone moderately weathered.

Petrography: Thin section shows packed rounded to irregularly shaped chondrules separated by opaque matrix. Sulfide and metal abundant in matrix. Some metal weathered to iron oxides. Wide variety of chondrule types present.

Geochemistry: Olivine in the range Fa_0.5-70.5(mean Fa_14.8±12.6, N=28). Cr₂O₃ in ferroan olivine 0.6±0.2 wt.% (N=12). Low-Ca pyroxene in the range Fs_3.0-25.7(mean Fs_16.2±10.6, Wo_1.1±0.6, N=19).

Data from:
  MB109
  Table 0
  Line 0:

State/Prov/County:	Antofagasta
Origin or pseudonym:	Limestone plain
Date:	2016-Oct-17
Latitude:	22°21.521'S
Longitude:	068°35.335'W
Mass (g):	140
Pieces:	1
Class:	CR2
Shock stage:	low
Weathering grade:	medium
Classifier:	J. Llorca, UPC
Type spec mass (g):	21
Type spec location:	UPC
Main mass:	Ion Ander Lanza
Finder:	Ion Ander Lanza
Comments:	Field Name: Met-2016b-001; submitted by David Allepuz

Institutions
and collections

UPC: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya Diagonal 647, ed. ETSEIB, 08028 Barcelona, Spain, Spain (institutional address; updated 3 May 2015)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 109, in preparation (2020)

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

Geography:

Chile

Coordinates:
Recommended::	(22° 21' 31"S, 68° 35' 20"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:

Direct link to this page