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Wellman (f)
Basic information Name: Wellman (f)
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2002
Country: United States
Mass:help 252 g
Classification
  history:
Recommended:  H3-4    [explanation]

This is 1 of 20 approved meteorites classified as H3-4.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 11 Nov 2020
Writeuphelp
Writeup from MB 109:

Wellman (f)        33.13°N, 102.38°W

Texas, USA

Find: 2002

Classification: Ordinary chondrite (H3-4)

History: Found in 2002 by oil field geologist Rodney Michel in the region north of Highway 62 between Brownfield and Wellman, Texas, and subsequently purchased from the finder in February 2020 by Peter Allen.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) The specimen is a breccia composed of discrete, well-formed chondrules plus lithic chondrite clasts set in sparse matrix containing extensively altered kamacite, taenite, low-Ti chromite, merrillite and chlorapatite. Both unequilibrated Type 3 clasts (containing relatively small, well-formed glass-bearing chondrules) and equilibrated Type 4 clasts (containing well-formed chondrules with albitic plagioclase) are present. Silica polymorph is present in some low-Ca pyroxene chondrules.

Geochemistry: Olivine in equilibrated chondrules (Fa18.4±0.3, range Fa18.1-18.8, N = 4), olivine in unequilibrated chondrules (Fa16.4±8.6, range Fa6.7-25.1, N = 4), low-Ca pyroxene in both sorts of chondrules (Fs14.8±9.3Wo1.3±1.3, range Fs2.8-28.5Wo0.2-3.4, N = 5), diopside (Fs3.6Wo36.7; Fs5.4Wo46.1; N = 2).

Classification: Ordinary chondrite (H3-4 breccia).

Specimens: 22.2 g including one polished thin section at UWB; remainder with Mr. P. Allen.

Data from:
  MB109
  Table 0
  Line 0:
State/Prov/County:Texas
Origin or pseudonym:Terry County
Place of purchase:Texas
Date:2002
Latitude:33.13°N
Longitude:102.38°W
Mass (g):252
Pieces:1
Class:H3-4
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):16.4±8.6; 18.4±0.3
Ferrosilite (mol%):14.8±9.3
Wollastonite (mol%):1.3±1.3
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):22.2
Type spec location:UWB
Main mass:P. Allen
Finder:Rodney Michel
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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
anakin711   
Gerald Armstrong   
Gregor H.   
Jay Piatek   
Jim K   
Michel Girard   
Robert Zdancewicz   
Geography:

United States
Coordinates:
     Recommended::   (33° 7' 48"N, 102° 22' 48"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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