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Estancia Valley
Basic information Name: Estancia Valley
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2014
Country: United States
Mass:help 2 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  L6
Recommended:  L6    [explanation]

This is 1 of 12780 approved meteorites (plus 11 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 3 Apr 2022
Writeuphelp
Writeup from MB 111:

Estancia Valley        34.64806°N, 106.16712°W

New Mexico, United States

Find: 28 Sept 2014

Classification: Ordinary chondrite (L6)

History: This ~2 kg meteorite was found in a field after plowing on September 28, 2014. The finder was Bill Gardner who initially thought it was a piece of tin shining in the field.

Physical characteristics: Single stone. Weathered fusion-crusted exterior with a reddish-brown color. Saw cut slice reveals scattered faint chondrules set in a patchy dark brown and light brown groundmass. Bright metal/sulfide grains are present throughout.

Petrography: (C. Agee, UNM) Microprobe and reflected light microscopy examination shows a few recrystallized chondrules, recrystallized groundmass, and ubiquitous metal and sulfide. Plagioclase grain size up to ~100 μm in diameter. Augite, troilite, kamacite, taenite, and spinel were detected.

Geochemistry: (A. Ross, UNM) Olivine Fa23.9±0.2, Fe/Mn=45±2, n=6; low-Ca pyroxene Fs20.8±0.8Wo1.5±0.3, Mn/Fe=29±2, n=3.

Classification: Ordinary chondrite (L6)

Specimens: 64.9 g on deposit at UNM, Bill Gardner holds the main mass.

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:New Mexico
Date:28 Sept 2014
Latitude:34.64806°N
Longitude:106.16712°W
Mass (g):2000
Pieces:1
Class:L6
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):23.9±0.2
Ferrosilite (mol%):20.8±0.8
Wollastonite (mol%):1.5±0.3
Classifier:C. Agee, UNM
Type spec mass (g):64.9
Type spec location:UNM
Main mass:Bill Gardner
Finder:Bill Gardner
Comments:Submitted by C. Agee
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography:

United States
Coordinates:
     Recommended::   (34° 38' 53"N, 106° 10' 2"W)

Statistics:
     This is 1 of 228 approved meteorites from New Mexico, United States (plus 2 unapproved names) (plus 1 impact crater)
     This is 1 of 1927 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters)
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