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Black Rock 008
Basic information Name: Black Rock 008
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2006
Country: United States
Mass:help 37.1 g
Classification
  history:
Recommended:  L5    [explanation]

This is 1 of 6538 approved meteorites (plus 4 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 12 Apr 2019
Writeuphelp
Writeup from MB 108:

Black Rock 008        40°57.877’N, 119°02.462’W

Nevada, United States

Find: 2006 Nov 04

Classification: Ordinary chondrite (L5)

History: This stone was recovered by Robert Verish along the eroded margin of a dry lake.

Physical characteristics: This 37.1 g fragment is half of a whole stone, with a dark-brown interior and a brown, relict fusion-crust on the exterior surface.

Petrography: (D. Sheikh, FSU) Chondrules absent. Recrystallized matrix with plagioclase (10-30 μm).

Geochemistry: Olivine, Fa23.67±0.9 (N=25); orthopyroxene, Fs19.24±0.9Wo1.77±0.3 (N=25).

Classification: Ordinary Chondrite (L5)

Specimens: 12.37 grams at UCLA; main mass with Verish.

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Nevada
Origin or pseudonym:dry lake
Date:2006 Nov 04
Latitude:40°57.877'N
Longitude:119°02.462'W
Mass (g):37.1
Pieces:1
Class:L5
Shock stage:S4
Weathering grade:W4
Fayalite (mol%):23.67±0.9 (N=25)
Ferrosilite (mol%):19.24±0.9 (N=25)
Wollastonite (mol%):1.77±0.3 (N=25)
Classifier:D. Sheikh, FSU
Type spec mass (g):12.37
Type spec location:UCLA
Main mass:Verish
Finder:Robert Verish
Comments:Fieldname = UU061104A; lab ID# = V-BR-8; 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. 108, in preparation (2019)
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Geography:

United States
Coordinates:
     Recommended::   (40° 57' 53"N, 119° 2' 28"W)

Statistics:
     This is 1 of 138 approved meteorites from Nevada, United States (plus 4 unapproved names)
     This is 1 of 1834 approved meteorites from United States (plus 358 unapproved names) (plus 28 impact craters)
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