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Angrite | 0.283g Rare Differentiated Meteorite - NWA 10646

Top Meteorite

  • $ 130.00

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On Offer: 0.283g Angrite NWA 10646 - Achondrite
Type: Angrite
Origin: Morocco
Official name: NWA 10646
Description: A 0.283 gram fragment of Angrite NWA 10646. 
Whenever possible, Top Meteorite acquires meteorites direct from the source in Northwest Africa, allowing us to offer exceptional quality specimens at very reasonable prices.
What you get: 0.283g NWA10646 Angrite Meteorite Specimen as Shown, Membrane Storage/Display Box, signed 5x7 double sided color Certificate of Authenticity
I offer a 100% no questions asked 15 day return policy.  
ID - 1064620160001
Northwest Africa 10646
Basic information Name: Northwest Africa 10646
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10646 
Observed fall: No
Year found: 2016
Country: (Northwest Africa) 
Mass:help 14 g
Recommended:   Angrite    [explanation]

This is 1 of 28 approved meteorites classified as Angrite.   [show all]
Search for other: AchondritesAngrites
Comments: Approved 15 May 2016
Writeup from MB 105: 

Northwest Africa 10646 (NWA 10646)

(Northwest Africa)

Purchased: 2016

Classification: Angrite

History: Purchased by Dustin Dickens, February 2016, from a Moroccan dealer.

Physical characteristics: Single piece, some fine desert soil on surface, partial fresh fusion crust. Broken surfaces show a fresh polycrystalline aggregate of mm-sized green, yellow, and black minerals. Friable.

Petrography: (C. Agee, UNM) This meteorite has a granular texture of fassaite (~50%) and olivine (~30%) up to ~1 mm, with stubby plagioclase laths (~15%) up to 300 μm. Some olivines have exsolved kirschsteinite. Accessory titanium-iron oxides and troilite were observed.

Geochemistry: (C. Agee and M. Spilde, UNM) Fassaite Fs17.0±7.1Wo52.7±1.3, range: Fs12.0-29.6, Fe/Mn=88±16, Al2O3 (wt%)=7.6±1.6, TiO2 (wt%)=1.6±0.9, n=6; olivine Fa55.4±13.7Lrn3.5±1.6, range Fa28.7-78.6, Fe/Mn=87±6, n=8; kirschsteinite Fa49.7Lrn45.8, Fe/Mn=81, n=1; plagioclase An99.4±0.1, n=5.

Classification: Angrite based on Fe/Mn, and presence of fassaite, kirschsteinite, and nearly pure anorthite. Paired with NWA 10463.

Specimens: 2.9 g including a probe mount on deposit at UNM, Dustin Dickens holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase: Morocco
Date: P 2016
Mass (g): 14
Pieces: 1
Class: Angrite
Shock stage: low
Weathering grade: low
Fayalite (mol%): 55.4±13.7
Ferrosilite (mol%): 17.0±7.1
Wollastonite (mol%): 52.7±1.3
Classifier: C. Agee, UNM
Type spec mass (g): 2.9
Type spec location: UNM
Main mass: Dustin Dickens
Comments: Field name TMS-2; submitted by C. Agee, UNM
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)

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