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Utting (b)
Basic information Name: Utting (b)
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: United States
Mass:help 96.6 g
Classification
  history:
Recommended:  H4    [explanation]

This is 1 of 6339 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 17 Jul 2021
Writeuphelp
Writeup from MB 110:

Utting (b)        34°00.62’N, 113°55.34’W

Arizona, United States

Find: 2021 Jan 12

Classification: Ordinary chondrite (H4)

History: A cluster of eight broken fragments were recovered by Anton Clemons and Robert Verish on January 12, 2021. Thin section was taken from the 4.3 g fragment.

Physical characteristics: All the fragments are dark-brown, and angular. Some fragments have one or more sides that appear to be a relict fusion-crust, which is indistinguishable from a thick, desert-varnished patina. A cut surface reveals an interior with small, matrix-supported chondrules of various colors.

Petrography: (D. Sheikh, FSU) Sample is an ordinary chondrite containing chondrules (Av. 450±50µm), Fe-Ni metal, and troilite.

Geochemistry: Olivine (Fa19.8±0.9, range Fa18.8-21.9, n=17), Low-Ca Pyroxene (Fs17.5±0.6 Wo1.1±0.2, range Fs16.5-18.7 Wo0.7-1.3, n=17).

Classification: Ordinary Chondrite (H4)

Specimens: 21 grams and a thin section at UCLA; main mass with Verish.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Arizona
Origin or pseudonym:Mixed in with lag-gravel
Date:2021 Jan 12
Latitude:34°00.62'N
Longitude:113°55.34'W
Mass (g):96.6
Pieces:8
Class:H4
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):19.8±0.9
Ferrosilite (mol%):17.5±0.6
Wollastonite (mol%):1.1±0.2
Classifier:D. Sheikh, FSU
Type spec mass (g):21
Type spec location:UCLA
Main mass:Verish
Finder:Anton Clemons
Comments:Fieldname = USA210112A; thin-section = Anton2; submitted by Daniel Sheikh; submitted by Daniel Sheikh
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)
FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010)
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:
Daniel Sheikh            
Geography:

United States
Coordinates:
     Recommended::   (34° 0' 37"N, 113° 55' 20"W)

Statistics:
     This is 1 of 178 approved meteorites from Arizona, United States (plus 1 impact crater)
     This is 1 of 1885 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters)
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