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Seminole (g)
Basic information Name: Seminole (g)
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1999
Country: United States
Mass:help 640 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  H5
Recommended:  H5    [explanation]

This is 1 of 10615 approved meteorites (plus 18 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 8 Mar 2012
Writeuphelp
Writeup from MB 100:

Seminole (g)        32°43’N, 102°39’W

Texas, USA

Found: 1999

Classification: Ordinary chondrite (H5)

History: Found in Gaines County, Texas, in 1999 by a rancher, and sent to the late M. Prinz (AMNH), who provided it to Russ Kempton (NEMS), who in turn donated it to Don Edwards in September 2000.

Physical characteristics: A single dense, dark stone (640.4 g) with brown, weathered exterior surfaces.

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

Geochemistry: Olivine (Fa18.6-19.3, Fe/Mn=42.9); orthopyroxene (Fs16.7-16.8Wo0.9, Fe/Mn=26.6).

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

Specimens: A 28.2 g polished slice is on deposit at UWS. The main mass is held by D. Edwards.

Data from:
  MB100
  Table 1
  Line 1892:
State/Prov/County:Texas
Date:1999
Latitude:32°43'N
Longitude:102°39'W
Mass (g):640.4
Pieces:1
Class:H5
Shock stage:S2-3
Weathering grade:W2
Fayalite (mol%):19.0 (18.6-19.3)
Ferrosilite (mol%):16.7 (16.7-16.8)
Wollastonite (mol%):0.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):28.2
Type spec location:UWS
Main mass:D. Edwards
Comments:Submitted by A. Irving
Institutions
   and collections
AMNH: Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West, New York, NY 10024, United States (institutional address; updated 18 May 2013)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography:

United States
Coordinates:
     Recommended::   (32° 43'N, 102° 39'W)

Statistics:
     This is 1 of 313 approved meteorites from Texas, United States (plus 2 unapproved names) (plus 3 impact craters)
     This is 1 of 1883 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters)
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