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Mount Blanco
Basic information Name: Mount Blanco
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: Yes, confirmed fall
Year fell: 2016
Country: United States
Mass:help 36.2 g
Meteoritical Bulletin:  MB 105  (2016)  L5
Recommended:  L5    [explanation]

This is 1 of 8937 approved meteorites (plus 5 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 21 May 2016
Writeup from MB 105:

Mount Blanco        33°45.37644’N, 101°14.9367’W

Texas, USA

Confirmed fall: 18 Feb 2016

Classification: Ordinary chondrite (L5)

History: On the night of February 18, 2016, the American Meteorite Society received numerous reports from Texas, Kansas, Oklahoma, and New Mexico of a fireball. The probable location of this fall was identified by Robert Ward and Dr. Marc Fries using radar data. One stone was discovered in a cotton field by Terry Scott and Sonny Clary on February 22.

Physical characteristics: Single stone of 36.2 g, almost fully fusion-crusted. A cut surface revealed a light-gray interior with abundant metal and a few clearly distinguished chondrules.

Petrography: (R.G. Mayne, TCU). The thin section used for classification of this meteorite contains one barred olivine (BO) chondrule with sharp boundaries but the remaining chondrules, although they can be discerned, do not show similar sharp boundaries and in some cases are poorly delineated. The matrix is recrystallized and chondrule glass appears devitrified. Feldspar grains within the section vary in size but are less than 50 μm.

Geochemistry: (C. Agee, UNM) Average compositions are as follows, olivine (N=6) Fa24.8±0.1, pyroxene (N=7) Fs20.8±0.2 Wo1.4±0.3.

Classification: Ordinary Chondrite (L5); the sample is a freshly collected fall (W0).

Specimens: 8.4 g TCU; main mass of 26.8 g shared by Clary and Terry Scott/landowner.

Data from:
  Table 0
  Line 0:
Date:18 Feb 2016
Mass (g):36.2
Shock stage:S1
Weathering grade:W0
Fayalite (mol%):24.8±0.1 (N=6)
Ferrosilite (mol%):20.8±0.2 (N=7)
Wollastonite (mol%):1.4±0.3 (N=7)
Classifier:R.G.Mayne, TCU, and C. Agee, UNM
Type spec mass (g):8.4
Type spec location:TCU
Main mass:Main mass was split between finders (Sonny Clary and Terry Scott) and the land-owner
Finder:Terry Scott and Sonny Clary
Comments:Submitted by R.G. Mayne (TCU)
   and collections
TCU: Oscar E. Monnig Collection, Department of Geology, Texas Christian University, Ft. Worth, TX 76129, United States; Website (institutional address; updated 24 Feb 2012)
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
Clary: Ralph "Sonny" Clary, Las Vegas, NV 89131 , United States; Website (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Public domain photographs:
L. Garvie, ASU   

United States
     Recommended::   (33° 45' 23"N, 101° 14' 56"W)

     This is 1 of 317 approved meteorites from Texas, United States (plus 2 unapproved names) (plus 3 impact craters)
     This is 1 of 1929 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters)
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