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Chug Chug 010
Basic information Name: Chug Chug 010
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2018
Country: Chile
Mass:help 225 g
Classification
  history:
Recommended:  H5    [explanation]

This is 1 of 9655 approved meteorites (plus 16 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 11 Jun 2019
Writeuphelp
Writeup from MB 108:

Chug Chug 010        22°29.856’S, 69°09.416’W

Antofagasta, Chile

Find: 2018 Oct 16

Classification: Ordinary chondrite (H5)

History: The meteorite (one piece) was found on October 16, 2018, by Ilya Chaplygin during a desert search organized by Timur Kryachko.

Physical characteristics: Single stone 224.5 g of angular shape with uneven, shiny dark-brown surface. No fusion crust was observed. Fresh cut reveals dark-brown interior with abundant chondrules and no visible metal. Bottom part is covered with pinkish light-colored desert dust.

Petrography: (Pavel Yu. Plechov, FMMR). Petrographic observation of a polished section shows that main part of the meteorite contains many clear pronounced chondrules. Chondrules sizes vary from 200 to 500 µm with rare large chondrules (up to 1500 µm). Plagioclase grains (An9.6-13.9) are about 10-50 µm. These features indicate a petrological type of 5 for the meteorite. Olivine has no undulatory extinction, as well as the absence of opaque shock veins and melt pockets indicates a shock stage of S1. Silicates are not weathered, and troilite is almost fresh whereas metal is significantly oxidized (weathering grade, W2).

Geochemistry: Mineral composition and Geochemistry: EDS analyses (Pavel Yu. Plechov, FMMR). The primary chondrite paragenesis includes olivine Fa18.49±0.47 (N=17), Low-Ca pyroxene Fs16.0±0.6Wo0.94±0.12 (N=7), plagioclase Ab83.5An11.8Or4.3 (N=2), clinopyroxene En50.0Fs5.4Wo44.7. Phosphate is Cl-apatite. Troilite is close to ideal stoichiometry.

Classification: (Pavel Yu. Plechov, FMMR). Ordinary chondrite. H5, S1, W2.

Specimens: Ilya Chaplygin holds main mass about 200 g. 31.8 g and thin section, FMMR.

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Origin or pseudonym:plain
Date:2018 Oct 16
Latitude:22°29.856'S
Longitude:69°09.416'W
Mass (g):224.5
Pieces:1
Class:H5
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):18.49±0.47 (N=17)
Ferrosilite (mol%):16.0±0.6 (N=7)
Wollastonite (mol%):0.94±0.12 (N=7)
Classifier:Pavel Yu. Plechov, FMMR
Type spec mass (g):31.8
Type spec location:FMMR
Main mass:Ilya Chaplygin
Finder:Ilya Chaplygin
Comments:Submitted by Pavel Yu. Plechov, pplechov@gmail.com
Institutions
   and collections
FMMR: Fersman Mineralogical Museum, Leninskiy prospekt 18 korpus 2, Moscow, Russia, 119071, Russia; Website (institutional address; updated 24 Feb 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
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Geography:

Chile
Coordinates:
     Recommended::   (22° 29' 51"S, 69° 9' 25"W)

Statistics:
     This is 1 of 1453 approved meteorites from Antofagasta, Chile (plus 4 unapproved names) (plus 1 impact crater)
     This is 1 of 1480 approved meteorites from Chile (plus 10 unapproved names) (plus 1 impact crater)
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