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Cactus Springs
Basic information Name: Cactus Springs
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2008
Country: United States
Mass:help 176 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  L6
Recommended:  L6    [explanation]

This is 1 of 10994 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 17 Feb 2017
Writeuphelp
Writeup from MB 106:

Cactus Springs        36.57098°N, 115.80987°W

Nevada, United States

Find: 2008 May 23

Classification: Ordinary chondrite (L6)

History: Found 7.4 Km from Cactus Springs. The stone was found along the US-95 freeway between Creech Air Force Base and the Mercury test site.

Petrography: The stone is very recrystallized, but relict PO, POP and BO chondrules can be discerned. Chondrule diameters range from 450-2500 μm. The olivine grains exhibit weak mosaic extinction, but no maskelynite is present. There are small irregular grains of troilite inside larger grains of metallic Fe-Ni. There are rare tiny grains (0.5 × 1 μm) of metallic Cu at the interface of metallic Fe-Ni and troilite. The troilite is polycrystalline. Chromite gains are extensively fractured. There is a 4-5-mm-long dark shock vein traversing the rock; the vein contains troilite surrounding fragmented silicate grains. Also present are chromite-plagioclase assemblages and rare chromite veinlets. Plagioclase grains range from 30 - 200 μm in diameter. Olivine and orthopyroxene are homogeneous. In addition, there are grains of Ca-pyroxene (Fs6.6Wo46.5).

Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Nevada
Origin or pseudonym:Desert sand
Date:2008 May 23
Latitude:36.57098°N
Longitude:115.80987°W
Mass (g):176
Pieces:1
Class:L6
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):24.2±0.2 (n=19)
Ferrosilite (mol%):20.7±0.4 (n=11)
Wollastonite (mol%):1.4±0.1 (n=11)
Classifier:A. Rubin, UCLA
Type spec mass (g):29.5
Type spec location:UCLA
Main mass:with finder
Finder:Robert J. Romans
Comments:Submitted by Alan Rubin
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)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography:

United States
Coordinates:
     Recommended::   (36° 34' 16"N, 115° 48' 36"W)

Statistics:
     This is 1 of 138 approved meteorites from Nevada, United States (plus 4 unapproved names)
     This is 1 of 1835 approved meteorites from United States (plus 358 unapproved names) (plus 28 impact craters)
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