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| Tungsten Mountain 058 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Tungsten Mountain 058 This is an OFFICIAL meteorite name. Abbreviation: TM 058 Observed fall: No Year found: 2001 Country: United States Mass:  34.9 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 11567 approved meteorites (plus 23 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 7 Jul 2020 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 109:
Tungsten Mountain 058 (TM 058) 39°41.3333’N, 117°37.2057’W Nevada, United States Find: 4 Aug 2001 Classification: Ordinary chondrite (H5) History: While conducting meteorite recovery on a dry-lake in Edwards Creek Valley, Robert Verish found this stone fragment on 2001-08-04 Physical characteristics: A single 34.9 g stony fragment, shaped like a dried apricot (40 × 35 × 15 mm) having dark-brown, hackly exterior with some black patina, and a small patch of relict fusion-crust. A saw-cut reveals dark-tan interior with sparse metal-grains and small chondrules Basically, a typical-looking fragment of a H-chondrite from this this dry-lake in Edwards Creek Valley. Petrography: (D. Sheikh, FSU) Low chondrule abundance (500-700 µm, n=2). Sample is composed of olivine, low-ca pyroxene, recrystallized plagioclase (average size 7±1 µm), troilite, Fe-Ni metal, Fe-oxides, and chromite. Geochemistry: Olivine (Fa19.1±0.6, n=18), Low-Ca Pyroxene (Fs16.8±0.6Wo1.3±0.1, n=16). Classification: Ordinary Chondrite (H5) Specimens: 32.1 g at UCLA; main mass with Verish. | ||||||||||||||||||||||||||||||||||||||
| Data from: MB109 Table 0 Line 0: |
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| Institutions and collections |
TM: Geoscience Museum, Transvaal Museum, P. O. Box 413, Pretoria 0001, South Africa (institutional address; updated 3 Mar 2011) UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010) Verish: Robert Verish, Meteorite-Recovery Lab, P.O. Box 463084, Escondido, CA 92046, United States; Website (private address; updated 27 May 2009) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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| Photos: |
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Geography:
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Statistics: This is 1 of 184 approved meteorites from Nevada, United States (plus 4 unapproved names) This is 1 of 1927 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters) | ||||||||||||||||||||||||||||||||||||||
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| Also see: |
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| Revision history: |
This lists important revisions made to data for this record.
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