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Arizona City
Basic information Name: Arizona City
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1988
Country: United States
Mass:help 94 g
Recommended:  H4    [explanation]

This is 1 of 6375 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 8 Jun 2021
Writeup from MB 110:

Arizona City        32°45’46.60"N, 111°37’12.16"W

Arizona, United States

Find: 1988

Classification: Ordinary chondrite (H4)

History: (C.B. Moore, ASU) Purchased from Mike Yeatts (formerly in the Department of Anthropology, ASU) who found the meteorite near the intersection of West Bataglia Dr. and North Toltec Rd ~4.8 km east of Arizona City while doing a field survey for a projected irrigation ditch.

Physical characteristics: Single 83.9 g squarish, fusion crusted meteorite. The fusion crust is largely orange stained. Interior of the stone is dark, with an abundance of chondrules, small troilite and metal grains to 1 mm.

Petrography: A petrographic thin section reveals an abundance of chondrules and mineral fragments hosted by an opaque iron-oxide stained matrix. Wide range of chondrule types (e.g., PP, PO, POP, BO, RP, GO, GP), which show a wide size range, with mean between 400 and 500 µm, though a 3 × 3 cm slice shows several chondrules in the 1 to 2.5 mm range. Reflected-light image shows ~70 % of the Fe-Ni metal and ~50 % of the sulfide weathered to Fe-oxides. Troilite is single crystal and lacks shock lamellae.

Geochemistry: (L. Garvie, ASU, K. Domanik, UofA) Fa19.0±0.2, range 18.7 to 19.3, FeO/MnO=35.2±1.7, N=20. low Ca pyroxene Fs16.4±0.2, range 16.0 to 16.8, Wo1.37±0.12, n=19. high Ca pyroxene Fs5.8±0.4Wo46.3±0.4, n=6.

Classification: H4, low shock, high weathering.

Specimens: 83.9 g at ASU

Data from:
  Table 0
  Line 0:
Mass (g):94
Shock stage:low
Weathering grade:high
Fayalite (mol%):19.0±0.2
Ferrosilite (mol%):16.4±0.2
Wollastonite (mol%):1.37±0.12
Classifier:C.B. Moore, L. Garvie, K. Domanik
Type spec mass (g):83.9
Type spec location:ASU
Main mass:ASU
Finder:Mike Yeatts
Comments:ASU#1310; submitted by L. Garvie
   and collections
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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United States
     Recommended::   (32° 45' 47"N, 111° 37' 12"W)

     This is 1 of 178 approved meteorites from Arizona, United States (plus 1 impact crater)
     This is 1 of 1886 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters)
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