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Willcox Playa 010
Basic information Name: Willcox Playa 010
     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 22.3 g
Meteoritical Bulletin:  MB 102  (2013)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 89 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 30 Dec 2013
Writeup from MB 102:

Willcox Playa 010        32°08’54.5"N, 109°52’25.2"W

Cochise County, Arizona, United States

Found: 25 June 2006

Classification: Primitive achondrite (Lodranite)

History: The 22.3 g stone was found on the Willcox Playa by Jason Utas while hunting for meteorites with Peter Utas.

Physical characteristics: The stone resembles a triangular flattened disk and is complete and oriented stone prior to the removal of the type specimen. Weathered fusion crust is present on all sides. The trailing face retains a frothy lip of fusion crust 4-6 mm wide and 1-2 mm thick.

Petrography: (J. Utas and A. Rubin, UCLA) The stone is comprised of 0.5-1.2 mm (avg. ~0.7 mm) orthopyroxene, olivine and Ca-rich clinopyroxene grains (Fs5.7±0.5 Wo21.9±0.6; (n=6). Ni-poor kamacite and terrestrial oxides are also present (~25% total volume), in addition to minor amounts of troilite and Ni-bearing schreibersite. Pyroxene grains exhibit abundant crystallographically controlled exsolved Ni-poor metallic Fe. No plagioclase was observed. The stone’s composition and lack of plagioclase indicate that it is a highly reduced member of the acapuolcoite/lodranite clan. Its coarse texture and the extent of reduction indicate that it is a lodranite. The lack of plagioclase, Cr-diopside and rare Cr-bearing minerals show that the rock is not a winonaite.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:dry lake bed
Date:25 June 2006
Mass (g):22.3
Shock stage:S2
Weathering grade:medium
Fayalite (mol%):2.8±0.2 (n=22)
Ferrosilite (mol%):4.0±0.2 (n=14)
Wollastonite (mol%):1.5±0.2 (n=14)
Classifier:J. Utas and A. Rubin, UCLA
Type spec mass (g):6.05
Type spec location:UCLA
Main mass:JUtas
Finder:Jason Utas
Comments:Submitted by Jason Utas and Alan Rubin
   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)
JUtas: Jason Utas, United States (private address; updated 8 Jun 2010)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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United States
     Recommended::   (32° 8' 54"N, 109° 52' 25"W)

     This is 1 of 178 approved meteorites from Arizona, United States (plus 1 impact crater)
     This is 1 of 1886 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters)
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