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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:
Recommended:  H5    [explanation]

This is 1 of 11372 approved meteorites (plus 22 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 Meteoritical Bulletin, no. 109, in preparation (2020)
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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 181 approved meteorites from Nevada, United States (plus 4 unapproved names)
     This is 1 of 1919 approved meteorites from United States (plus 867 unapproved names) (plus 28 impact craters)
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