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Tungsten Mountain 059
Basic information Name: Tungsten Mountain 059
     This is an OFFICIAL meteorite name.
Abbreviation: TM 059
Observed fall: No
Year found: 2001
Country: United States
Mass:help 12 g
Classification
  history:
Recommended:  H5    [explanation]

This is 1 of 10151 approved meteorites (plus 18 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 059 (TM 059)        39°41.3069’N, 117°37.2672’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 12 g stony fragment, four-sided (28 × 17 × 10 mm) with 3 sides forming a corner covered in 1mm-thick fusion-crust. Saw-cut reveals a light-brown interior with many metal-grains and visible chondrules.

Petrography: (D. Sheikh, FSU) Low chondrule abundance (300-1000 µm, n=10). Sample is composed of olivine, low-ca pyroxene, recrystallized plagioclase (average size 10±2 µm), troilite, Fe-Ni metal, Fe-oxides, and chromite.

Geochemistry: Olivine (Fa19.0±0.7, n=20), Low-Ca Pyroxene (Fs16.9±0.9Wo1.3±0.1, n=16).

Classification: Ordinary Chondrite (H5)

Specimens: 10.1 g at UCLA; main mass with Verish.

Data from:
  MB109
  Table 0
  Line 0:
State/Prov/County:Nevada
Origin or pseudonym:drylake
Date:4 Aug 2001
Latitude:39°41.3069'N
Longitude:117°37.2672'W
Mass (g):12
Pieces:1
Class:H5
Shock stage:S3
Weathering grade:W4
Fayalite (mol%):19.0±0.7 (N=20)
Ferrosilite (mol%):16.9±0.9 (N=16)
Wollastonite (mol%):1.3±0.1 (N=16)
Classifier:D. Sheikh, FSU
Type spec mass (g):10.1
Type spec location:UCLA
Main mass:Verish
Finder:Robert Verish
Comments:Fieldname = ECVB07; lab ID# = V-B07; abbr. = TM 059; 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' 18"N, 117° 37' 16"W)

Statistics:
     This is 1 of 155 approved meteorites from Nevada, United States (plus 4 unapproved names)
     This is 1 of 1865 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters)
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