Meteorite**NWA 13274, Achondrite-UNG.**1.491 gram slice, Ultra Rare!! Paired 011

Description

Hello up for sale is NWA 13274 classified as a Ungrouped achondrite, Ultra Rare, Paired to NWA 011!!! This beautiful slice weighs 1.491 grams, with a perfect polish to one side, composed predominantly of larger grains (mean size ~0.6 mm) of finely-exsolved low-Ca and high-Ca pyroxenes plus polygranular calcic plagioclase, together with accessory silica polymoprh, ferroan olivine, merrillite, chromite, ilmenite, Cr ulvöspinel, troilite and pentlandite (stained). History: Purchased by Mark Lyon in December 2019 and January 2020 from two separate Moroccan dealers. This will come with 2 COA cards, Streaming meteorites and Mark Lyon, and display case. Thanks for your interest and take care.
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PS THIS IS AN ULTRA RARE METEORITE AND THE ONLY SLICE I HAVE AVAILABLE, GOOD LUCK BIDDING!!!***
Name: Northwest Africa 13274
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13274
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 256 g
Northwest Africa 13274 (NWA 13274)
(Northwest Africa)
Purchased: 2019
Classification: Ungrouped achondrite
History: Purchased by Mark Lyon in December 2019 and January 2020 from two separate Moroccan dealers.
Physical characteristics: A total of eight similar-appearing brown stones (combined weight 255.5 g).
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Analysis of two different stones shows this material to be composed predominantly of larger grains (mean size ~0.6 mm) of finely-exsolved low-Ca and high-Ca pyroxenes plus polygranular calcic plagioclase, together with accessory silica polymoprh, ferroan olivine, merrillite, chromite, ilmenite, Cr ulvöspinel, troilite and pentlandite (stained).
Geochemistry: Low-Ca pyroxene (Fs62.2-63.6Wo6.3-6.8, FeO/MnO = 60-65, N = 6), high-Ca pyroxene (Fs34.8-35.9Wo38.1-39.1, FeO/MnO = 60-69, N = 5), olivine (Fa72.1-82.0, FeO/MnO = 90-100, N = 4), plagioclase (An84.8-88.2Or0.3, N = 3).
Classification: Achondrite (ungrouped). Paired with NWA 011, NWA 2400, NWA 2976, NWA 4587, NWA 4901 and NWA 8545.
Specimens: 20.7 g including one polished thin section at UWB; remainder with Mr. M. Lyon.
Data from:
MB109
Table 0
Line 0:
Place of purchase:Agadir; Tucson
Date:P 2019
Mass (g):255.5
Pieces:8
Class:Achondrite-ung
Shock stage:low
Weathering grade:low
Fayalite (mol%):72.1-82.0
Ferrosilite (mol%):62.2-63.6; 34.8-35.9
Wollastonite (mol%):6.3-6.8; 38.1-39.1
Classifier:A. Irving, UWS, and P. Carpenter, WUSTL
Type spec mass (g):20.7
Type spec location:UWB
Main mass:M. Lyon
Comments:Work name Lyon19-4; submitted by A. Irving