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Seminole (f)
Basic information Name: Seminole (f)
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2008
Country: United States
Mass:help 5.42 kg
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  H5
Recommended:  H5    [explanation]

This is 1 of 9406 approved meteorites (plus 11 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 16 Sep 2011
Writeuphelp
Writeup from MB 100:

Seminole (f)        32°42.023’N, 102°40.361’W

Gaines County, Texas, USA

Purchased: 2008 Apr

Classification: Ordinary chondrite (H5)

History: Found by a rancher in April 2008 among a group of rocks at the corner of a plowed field located 1.75 miles south of the town of Seminole in Gaines County, Texas, and purchased by Philip Mani.

Physical characteristics: A single 5421 g stone covered by a dark brown weathering patina and with several fissures. Interior is black with obvious metal.

Petrography: (A. Irving and S. Kuehner, UWS) Sparse chondrules (mostly BO). Mineralogy is olivine, orthopyroxene, sodic plagioclase, chromite, merrillite, kamacite and troilite.

Geochemistry: Olivine (Fa18.5-21.0, FeO/MnO = 34.5-53.9), orthopyroxene (Fs16.6-16.8Wo0.8, FeO/MnO = 24.4).

Classification: Ordinary chondrite (H5, S2-3, W2). This specimen is likely paired with other H chondrite stones named Seminole found in Gaines County.

Specimens: A 38.1 g polished slice is on deposit at UWS. The main mass is held by PMani.

Data from:
  MB100
  Table 1
  Line 1891:
State/Prov/County:Gaines County, Texas
Place of purchase:Seminole
Date:P 2008 Apr
Latitude:32°42.023'N
Longitude:102°40.361'W
Mass (g):5421.0
Pieces:1
Class:H5
Shock stage:S2/3
Weathering grade:W2
Fayalite (mol%):19.5 (18.5-21.0)
Ferrosilite (mol%):16.7 (16.6-16.8)
Wollastonite (mol%):0.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):38.1
Type spec location:UWS
Main mass:PMani
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)
PMani: Philip Mani, 20726 Stone Oak Parkway, Suite 116, San Antonio, TX 78258 , United States (private address; updated 2 Jan 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography:

United States
Coordinates:
     Recommended::   (32° 42' 1"N, 102° 40' 22"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 1806 approved meteorites from United States (plus 354 unapproved names) (plus 28 impact craters)
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