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Chug Chug 108
Basic information Name: Chug Chug 108
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2019
Country: Chile
Mass:help 113.3 g
Recommended:  H5    [explanation]

This is 1 of 10803 approved meteorites (plus 19 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 18 Sep 2021
Writeup from MB 110:

Chug Chug 108        22°29.194’S, 69°10.625’W

Antofagasta, Chile

Find: 24 Oct 2019

Classification: Ordinary chondrite (H5)

History: The meteorite was found in autumn 2019 by Atali Agakhanov during a meteorite searching expedition organized by Timur Kryachko.

Physical characteristics: Total mass is about 113 g. The interior of the meteorite is rusty brown whereas the surface is dark brown with visible metal.

Petrography: (Kseniya A. Konovalova, FMMR). Petrographic observation of a polished section shows that meteorite consists of matrix and rare chondrules with irregular shapes. Chondrules size vary from 200 to 500 µm. Matrix crystals are predominantly medium- and coarse-grained. Plagioclase in matrix have size up to 50 µm. These features indicate a petrological type of 5 for the meteorite. Metal blebs and troilite are surrounding by hydroxides and its veins (weathering grade is W1). The meteorite has multiple shock veins. Veins are filled with troilite. Olivine large crystalls have undulatory extinction (shock stage S2).

Geochemistry: Mineral composition and Geochemistry: EDS analyses (Atali Agakhanov, Ksenia Konovalova, FMMR). The primary chondrite paragenesis includes olivine 20.04±1.17 (N=18), Low-Ca pyroxene Fs17.8±0.6Wo1.59±0.65 (N=23), plagioclase Ab78.7An12.6Or6.6 (N=7). Composition of kamacite (in wt. %, n = 2): Fe - 91.5, Ni - 7.1, Co - 0.9, taenite (in wt., %) : Fe - 57.86, Ni - 39.05, Co - 0.51

Classification: (Kseniya A. Konovalova, FMMR). Ordinary chondrite. H5, S2, W1.

Specimens: Main mass and thin section are in the FMMR

Data from:
  Table 0
  Line 0:
Origin or pseudonym:plain
Date:24 Oct 2019
Mass (g):113.27
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):20.0±1.2 (N=18)
Ferrosilite (mol%):17.8±0.6 (N=23)
Wollastonite (mol%):1.59±0.65 (N=23)
Classifier:K. A. Konovalova, FMMR
Type spec mass (g):113.27
Type spec location:FMMR
Main mass:FMMR
Finder:Atali Agakhanov
Comments:Field name is MA019; submitted by Kseniya A. Konovalova, spacelikeyou@yandex.ru
   and collections
FMMR: Fersman Mineralogical Museum, Leninskiy prospekt 18 korpus 2, Moscow, Russia, 119071, Russia; Website (institutional address; updated 24 Feb 2018)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     Recommended::   (22° 29' 12"S, 69° 10' 37"W)

     This is 1 of 2160 approved meteorites from Antofagasta, Chile (plus 6 unapproved names) (plus 1 impact crater)
     This is 1 of 2189 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)
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