Meteoritical Bulletin: Entry for Black Butte 003

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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: 4.4 g

Classification
history:

Meteoritical Bulletin:	MB 109	(2020)	H4
Recommended:			H4 [explanation]

This is 1 of 6493 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

Writeup

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 (Fa_18.6±0.5, n=42), Low-Ca Pyroxene (Fs_16.3±0.4Wo_1.0±0.1, n=14), High-Ca Pyroxene (Fs_6.5Wo_41.1, n=1), Calcic Plagioclase (An_11.0, 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:

Credit	Photos
Public domain photographs:
Daniel Sheikh

Geography:

United States

Coordinates:
Recommended::	(41° 23' 18"N, 118° 7' 48"W)

Statistics:
This is 1 of 184 approved meteorites from Nevada, United States (plus 4 unapproved names)
This is 1 of 1927 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters)

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Revision
history:

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