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Northwest Africa 10460
Basic information Name: Northwest Africa 10460
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10460
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 1582 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  H4
Recommended:  H4    [explanation]

This is 1 of 6388 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 26 Dec 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10460 (NWA 10460)

Northwest Africa

Purchased: 2012

Classification: Ordinary chondrite (H4)

History: A 1582 g meteorite was purchased by Gary Spraggins from a Moroccan meteorite dealer at the 2012 Tucson and Gem and Mineral Show.

Physical characteristics: Sawn slice shows abundant chondrules and chondrule fragments in a dark matrix. Largest chondrule 3.7 mm diameter, though majority <0.7 mm diameter. No metal visible.

Petrography: (L. Garvie, ASU) Range of chondrule types including CC, PO, POP, BO and one radial olivine. The slice contains one large (1.3 mm) BO with pentagonal arrangement of olivine bars. Olivine shows sharp extinction indicative of S1. Secondary feldspar grains not evident. All metal oxidized, though some troilite remaining.

Geochemistry: (L. Garive, ASU) Olivine Fa18.6?0.3, Fe/Mn=37.5±0.2 wt%, n=7. Low Ca pyroxene Fs16.6±0.3Wo1.5±0.3, Fe/Mn=22.1±1.1 wt%, n=6.

Classification: H4, S1, W4

Specimens: 35.6 g slice and one polished thin section at ASU.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Tucson, USA
Date:P 2012
Mass (g):1582
Pieces:1
Class:H4
Shock stage:S1
Weathering grade:W4
Fayalite (mol%):18.6±0.3
Ferrosilite (mol%):16.6±0.3
Wollastonite (mol%):1.5±0.3
Classifier:L. Garvie
Type spec mass (g):35.6
Type spec location:ASU
Main mass:Gary Spraggins
Finder:unknown
Comments:Submitted by L. Garvie
Institutions
   and collections
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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