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Calama 174
Basic information Name: Calama 174
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Chile
Mass:help 560 g
Classification
  history:
Recommended:  LL6    [explanation]

This is 1 of 2863 approved meteorites (plus 2 unapproved names) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Oct 2021
Writeuphelp
Writeup from MB 110:

Calama 174        22°10.78’S, 68°37.15’W

Antofagasta, Chile

Find: 23 Mar 2021

Classification: Ordinary chondrite (LL6)

Petrography: (C. Lorenz, Vernad) The meteorite has brecciated texture composed by clasts (40 vol.%) and matrix (60 vol.%). The contacts of clasts and matrix are well defined. The clasts comprise coarse-grained (grain size up to 1 mm), intensively recrystallized chondritic rock with single large recrystallized chondrule relics. Olivine, pyroxene and feldspar are main phases, Fe,Ni metal, troilite, chromite and Ca-phosphate are accessories. Feldspar grains are up to 300 µm in size. The matrix is fine-grained (grain size 50-100 µm) equigranular recrystallized rock. Iron hydroxides are widely distributed on the grain contacts and fill the fractures in the meteorite.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:23 Mar 2021
Latitude:22°10.78'S
Longitude:68°37.15'W
Mass (g):560
Pieces:1
Class:LL6
Shock stage:S1
Weathering grade:W3
Fayalite (mol%):30.9±0.8 (N=11)
Ferrosilite (mol%):25.3±1.0 (N=10)
Wollastonite (mol%):1.7±0.8 (N=10)
Classifier:Lorenz C. A., Vernad
Type spec mass (g):49.3
Type spec location:Vernad
Main mass:Mr. T. Kryachko, bredfild@mail.ru
Finder:Mr. T. Kryachko
Comments:Field name is 7-42; analyst Lorenz C.A., Vernad.; 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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Timur Kryachko   
Geography:

Chile
Coordinates:
     Recommended::   (22° 10' 47"S, 68° 37' 9"W)

Statistics:
     This is 1 of 2340 approved meteorites from Antofagasta, Chile (plus 9 unapproved names) (plus 1 impact crater)
     This is 1 of 2369 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater)
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