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Buck Mountains 004
Basic information Name: Buck Mountains 004
     This is an OFFICIAL meteorite name.
Abbreviation: BM 004
Observed fall: No
Year found: 2005
Country: United States
Mass:help 145.8 g
Meteoritical Bulletin:  MB 100  (2012)  H3-6
Recommended:  H3-6    [explanation]

This is 1 of 80 approved meteorites classified as H3-6.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 14 Apr 2012
Writeup from MB 100:

Buck Mountains 004 (BM 004)        34°42.065’N, 114°11.307’W

Arizona, United States

Found: 9 Oct 2005

Classification: Ordinary chondrite (H3-6)

History: This stone is one of 602 pieces totaling 29.5 kg of possibly paired meteorites found by Mr. Dennis Asher and colleagues in an area 60 × 60 m.

Physical characteristics: The stone mainly has broken faces covered by a weathering patina that ranges from light brown to dark brown to black; black-to-brown fusion crust occurs on one side. Cut faces show abundant metal.

Petrography: (A. Ruzicka and M. Hutson, Cascadia) The sample is a breccia that includes a variety of distinct and indistinct clasts ranging from type 3 to type 6 chondrite and melt breccia. Shock character is highly variable (S1-S6), but shock stages S4 and S5 are predominant. Weathering is uneven but averages W2.

Geochemistry: Olivine Fa17.7±2.4, n=66; low-Ca pyroxene Fs12.9±5.0Wo1.1±0.7, n=34.

Classification: Ordinary chondrite (H3-6), genomict breccia that contains some melt breccia.

Specimens: 136.8 g, one thin section, and one butt are on deposit at Cascadia.

Data from:
  Table 1
  Line 37:
Date:9 Oct 2005
Mass (g):145.8
Shock stage:S4-5
Weathering grade:W2
Fayalite (mol%):17.7
Ferrosilite (mol%):12.9
Wollastonite (mol%):1.1
Classifier:A. Ruzicka and M. Hutson, Cascadia
Type spec mass (g):136.8
Type spec location:Cascadia
Main mass:Cascadia
Finder:Mr. Dennis Asher
Comments:Submitted by A. Ruzicka
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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United States
     Recommended::   (34° 42' 4"N, 114° 11' 18"W)

     This is 1 of 180 approved meteorites from Arizona, United States (plus 1 impact crater)
     This is 1 of 1930 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters)
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Synonymshelp: Yucca 013 (MetBull 101)

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