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Tungsten Mountain 084
Basic information Name: Tungsten Mountain 084
     This is an OFFICIAL meteorite name.
Abbreviation: TM 084
Observed fall: No
Year found: 2001
Country: United States
Mass:help 28.1 g
Classification
  history:
Meteoritical Bulletin:  MB 109  (2021)  H5
Recommended:  H5    [explanation]

This is 1 of 12029 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
Writeuphelp
Writeup from MB 109:

Tungsten Mountain 084 (TM 084)        39°41.2226’N, 117°37.3741’W

Nevada, United States

Find: 5 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 2001-08-05

Physical characteristics: Two physically-paired stony fragments, total weight 28.1 g, irregularly shaped (badly weathered) having dark-brown, hackly exterior with some black patina, but no fusion-crust. 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 (700-900 µm, n=2). Sample is composed of olivine, low-ca pyroxene, recrystallized plagioclase (average size 6±2 µm), troilite, Fe-Ni metal, Fe-oxides, and chromite.

Geochemistry: Olivine (Fa18.9±0.5, n=16), Low-Ca Pyroxene (Fs16.9±0.8Wo1.1±0.2, n=7).

Classification: Ordinary Chondrite (H5)

Specimens: 12.7 g at UCLA; main mass with Verish.

Data from:
  MB109
  Table 0
  Line 0:
State/Prov/County:Nevada
Origin or pseudonym:drylake
Date:5 Aug 2001
Latitude:39°41.2226'N
Longitude:117°37.3741'W
Mass (g):28.1
Pieces:2
Class:H5
Shock stage:S3
Weathering grade:W4
Fayalite (mol%):18.9±0.5 (N=16)
Ferrosilite (mol%):16.9±0.8 (N=7)
Wollastonite (mol%):1.1±0.2 (N=7)
Classifier:D. Sheikh, FSU
Type spec mass (g):12.7
Type spec location:UCLA
Main mass:Verish
Finder:Robert Verish
Comments:Fieldname = ECVB10; lab ID# = V-B10; abbr. = TM 084; submitted by Daniel Sheikh
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)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J., Bouvier A., Bullock E., Chennaoui Aoudjehane H., Debaille V., D’Orazio M., Komatsu M., Miao B. and Schrader D. L. (2021) The Meteoritical Bulletin, No. 109. Meteoritics & Planetary Science 56, 1626–1630.
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Photos:
CreditPhotos
Public domain photographs:
Daniel Sheikh      
Geography:

United States
Coordinates:
     Recommended::   (39° 41' 13"N, 117° 37' 22"W)

Statistics:
     This is 1 of 185 approved meteorites from Nevada, United States (plus 4 unapproved names)
     This is 1 of 1934 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters)
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