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Cargo Muchacho Mountains (b)
Basic information Name: Cargo Muchacho Mountains (b)
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2009
Country: United States
Mass:help 21.3 g
Classification
  history:
Recommended:  H4    [explanation]

This is 1 of 6031 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 13 Mar 2021
Writeuphelp
Writeup from MB 110:

Cargo Muchacho Mountains (b)        32°55.260’N, 114°45.920’W

California, United States

Find: 2009 Dec 31

Classification: Ordinary chondrite (H4)

History: On December 31, 2009, while searching in the watershed of the Indian Pass Wash for additional meteorites in the Cargo Muchacho Mountains (CO3) strewn-field, a single complete-individual stone with relict fusion-crust was found right next to where Robert Verish had parked his truck.

Physical characteristics: A single, shield-shaped dark-brown stone; somewhat oriented. The side that was in contact with the ground is stained orange, while the top-side has a desert-varnished patina, which is indistinguishable from a relict fusion-crust. A cut surface reveals an interior with small, matrix-supported chondrules of various colors.

Petrography: (A. Rubin, UCLA) Chondrules moderately abundant (500±50 µm). Sample composed of olivine, low-Ca pyroxene, troilite, Fe-Ni metal, and Fe-oxides.

Geochemistry: Olivine (Fa18.0±0.1 n=7); Ferrosillite (Fs 16.2Wo1.6 n=9); low-Ca Pyroxene (Fs6.9Wo44.8 n=8).

Classification: Ordinary Chondrite (H4)

Specimens: 4.3 g at UCLA; main mass with Verish.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:California
Origin or pseudonym:open desert with thin alluvium
Date:2009 Dec 31
Latitude:32°55.260'N
Longitude:114°45.920'W
Mass (g):21.3
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W5
Fayalite (mol%):18.0±0.1 (n=7)
Ferrosilite (mol%):16.2 (n=9)
Wollastonite (mol%):1.6
Classifier:A. Rubin, UCLA
Type spec mass (g):4.3
Type spec location:UCLA
Main mass:Verish
Finder:James LaBarbera and Robert Verish
Comments:Fieldname = V1001; submitted by Robert Verish; submitted by Verish
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Verish: Robert Verish, Meteorite-Recovery Lab, P.O. Box 463084, Escondido, CA 92046, United States; Website (private address; updated 27 May 2009)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Photos:
CreditPhotos
Public domain photographs:
Robert Verish                           
Geography:

United States
Coordinates:
     Recommended::   (32° 55' 16"N, 114° 45' 55"W)

Statistics:
     This is 1 of 268 approved meteorites from California, United States (plus 24 unapproved names)
     This is 1 of 1881 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters)
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