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Black Butte 003
Basic information Name: Black Butte 003
     This is an OFFICIAL meteorite name.
Abbreviation: BB 003
Observed fall: No
Year found: 2018
Country: United States
Mass:help 4.4 g
Classification
  history:
Recommended:  H4    [explanation]

This is 1 of 5963 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 31 Jan 2020
Writeuphelp
Writeup from MB 109:

Black Butte 003 (BB 003)        41°23.3’N, 118°7.8’W

Nevada, United States

Find: 2018 Sep 27

Classification: Ordinary chondrite (H4)

History: This fragment was recovered by Robert Verish while he was searching for meteorites at the north end of a playa.

Physical characteristics: This angular 4.4 g dark brownish-black fragment has a very weathered exterior. A cut surface shows visible chondrules and metal-grains in a brown matrix.

Petrography: (D. Sheikh, FSU) Sample contains well-defined chondrules (Av. 500 μm) along with metal and troilite. Chromite, merrilite, and secondary Fe-oxides present as well.

Geochemistry: Olivine (Fa18.6±0.5, n=42), Low-Ca Pyroxene (Fs16.3±0.4Wo1.0±0.1, n=14), High-Ca Pyroxene (Fs6.5Wo41.1, n=1), Calcic Plagioclase (An11.0, n=1).

Classification: Ordinary Chondrite (H4)

Specimens: 1.1 grams at UCLA; main mass with Verish.

Data from:
  MB109
  Table 0
  Line 0:
State/Prov/County:Nevada
Origin or pseudonym:playa
Date:2018 Sep 27
Latitude:41°23.3'N
Longitude:118°7.8'W
Mass (g):4.4
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):18.6±0.5
Ferrosilite (mol%):16.3±0.4
Wollastonite (mol%):1.0±0.1
Classifier:D. Sheikh, FSU
Type spec mass (g):1.1
Type spec location:UCLA
Main mass:Verish
Finder:Robert Verish
Comments:Fieldname = N180927; lab ID# = V-Sod1; submitted by Daniel Sheikh
Institutions
   and collections
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::   (41° 23' 18"N, 118° 7' 48"W)

Statistics:
     This is 1 of 155 approved meteorites from Nevada, United States (plus 4 unapproved names)
     This is 1 of 1861 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters)
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