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Plainview (f)
Basic information Name: Plainview (f)
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1950
Country: United States
Mass:help 10.25 kg
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  H4-5
Recommended:  H4-5    [explanation]

This is 1 of 77 approved meteorites classified as H4-5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Dec 2017
Writeuphelp
Writeup from MB 106:

Plainview (f)        34.089°N, 101.84°W

Texas, USA

Find: 1950

Classification: Ordinary chondrite (H4-5)

History: Found in 1950 by Mr. M. Gibson (now deceased) while plowing his field located 1.5 miles northeast of Hale Center, Texas. The specimen lay for many years in a flower garden until it was purchased from Mrs. Gibson by an anonymous local citizen. Mr. Alan Standen of Austin, Texas, a friend of the current owner, arranged for the meteorite to be tested and classified.

Physical characteristics: A single brown stone (10.251 kg) lacking fusion crust. The interior exhibits variable ° of weathering of primary metal and staining of silicates.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed mainly of type 5 clasts containing sparse chondrules, but some type 4 clasts containing fairly well-formed chondrules and less equilibrated pyroxenes are also present. Both clasts and the sparse matrix contain relatively abundant altered metal, chlorapatite and merrillite. Weathering grade varies from W1 to W3.

Geochemistry: Olivine (Fa18.6-19.4, N = 5), orthopyroxene (Fs16.0-16.5Wo1.5-1.4; magnesian core Fs10.7Wo0.5; N = 3), subcalcic augite (Fs11.8Wo33.0), augite (Fs6.9Wo44.3).

Classification: Ordinary chondrite (H4-5 breccia). This specimen may be paired with other similar H chondrite stones named Plainview found in the same region.

Specimens: 46.1 g plus one polished thin section at UWB; remainder with anonymous owner.

Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Texas
Origin or pseudonym:Hale County
Date:1950
Latitude:34.089°N
Longitude:101.84°W
Mass (g):10251
Pieces:1
Class:H4-5
Shock stage:S2
Weathering grade:W2/3
Fayalite (mol%):18.6-19.4
Ferrosilite (mol%):16.0-16.5
Wollastonite (mol%):1.5-1.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):46.10
Type spec location:UWB
Main mass:Anonymous
Finder:M. Gibson
Comments:Submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography:

United States
Coordinates:
     Recommended::   (34° 5' 20"N, 101° 50' 24"W)

Statistics:
     This is 1 of 311 approved meteorites from Texas, United States (plus 2 unapproved names) (plus 3 impact craters)
     This is 1 of 1824 approved meteorites from United States (plus 349 unapproved names) (plus 28 impact craters)
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