Clarendon(c) 116g New Texas Meteor Find! | Large Fragment | Limited availability
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 |
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Classification history: |
This is 1 of 1474 approved meteorites (plus 4 unapproved names) classified as L4. [show all] Search for other: L chondrites (type 4-7), Ordinary chondrites (type 4-7), L chondrites, and Ordinary chondrites |
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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. |
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Data from: MB105 Table 0 Line 0: |
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