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| Clarendon (c) | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Clarendon (c) This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2015 Country: United States Mass:  377 kg | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 2121 approved meteorites (plus 5 unapproved names) classified as L4. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||
| Comments: | Approved 22 Oct 2016 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 105:
Clarendon (c) 34.983°N, 100.933°W Texas, United States Find: 2015 Apr 6 Classification: Ordinary chondrite (L4) History: Frank and DeeDee Hommel of the Bar H Working Dude Ranch located northwest of Clarendon, Texas, were out riding on their property on April 6, 2015, and report that "their horses went crazy" when they approached a large unusual rock (later determined to weigh 345 kg). They dug up additional fragments weighing about 32 kg near the large mass located at 34.983°N, 100.933°E. They contacted Eric Twelker, who arranged for testing of a specimen. Physical characteristics: The main mass (345 kg) has a reddish-brown exterior and lacks fusion crust. The relatively fresh interior is medium gray with abundant bright metal grains. Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules up to 3.3 mm occur within a relatively coarse-grained matrix containing abundant stained kamacite plus accessory sodic plagioclase, merrillite and troilite. Geochemistry: Olivine (Fa24.1-24.6, N = 3), orthopyroxene (Fs20.5-20.6Wo1.2-1.5, N = 3), clinopyroxene (Fs7.3-7.6Wo45.2-45.0, N = 2). Oxygen isotopes (K. Ziegler, UNM): analysis of acid-washed subsamples by laser fluorination gave, respectively, δ17O = 3.611, 3.702, 3.673; δ18O = 4.855, 4.950, 4.827; Δ17O = 1.048, 1.088, 1.124 per mil. Classification: Ordinary chondrite (L4). Specimens: 20.6 g plus one polished thin section at UWB; remaining material with the finders. | ||||||||||||||||||||||||||||||||||||
| Data from: MB105 Table 0 Line 0: |
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| Plots: | O isotopes: | ||||||||||||||||||||||||||||||||||||
| Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014) |
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| References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:
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Statistics: This is 1 of 317 approved meteorites from Texas, United States (plus 2 unapproved names) (plus 3 impact craters) This is 1 of 1935 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters) | ||||||||||||||||||||||||||||||||||||
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