Description: Hi my name is Luisa Stream, im part of Streaming meteorites. Im excited to be here, every meteorite I sell comes with a COA card and display✨ NWA 16128 weight 1.553 grams!!! Name: Northwest Africa 16128 This is an OFFICIAL meteorite name. Abbreviation: NWA 16128 Observed fall: No Year found: 2022 Country: (Northwest Africa) Mass: 2.87 kg Northwest Africa 16128 (NWA 16128) (Northwest Africa) Purchased: 2022 Classification: Ungrouped achondrite History: Purchased by Craig Zlimen and Mark Lyon from a Northwest African meteorite dealer, the main mass was subsequently purchased by Steve Jurvetson. Physical characteristics: Single stone with patches of black fusion crust. The exposed interior is a fragmental breccia with coarse light-green to cream-colored grains. Scattered oxidized metal grains are visible throughout. Petrography: (C. Agee and M. Spilde, UNM) Reflected light microscopy images and backscatter electron images show an approximate modal abundance of olivine at ~90%. Minor phases include pigeonite, augite, feldspar, kamacite, troilite, and chromite. Large olivine grains are up to 1 cm in size, but there are cataclastic zones where the grain size is as small as a few µm. Geochemistry: (M. Spilde, UNM) Olivine Fa11.2±2.9, Fe/Mn=42±4, n=13; pigeonite Fs30.7±12.2Wo9.3±6.4, Fe/Mn=29±2, n=4; plagioclase An72.2±12.2Ab27.2±12.1, n=3. Classification: Ungrouped achondrite, dunite breccia. Similar to NWA 12217, possibly paired with NWA 12562, NWA 12319, NWA 13954, and NWA 14993. Highly variable grain size as is the case for all the ungrouped dunites NWA 12217, NWA 12562, NWA 12319, NWA 13954, and NWA 14993. Specimens: 21 g including a probe mount on deposit at UNM, Steve Jurvetson holds the main mass. Data from: MB112 Table 0 Line 0: Place of purchase:Northwest Africa Date:P 2022 Mass (g):2865 Pieces:1 Class:Achondrite-ung Shock stage:high Weathering grade:low Fayalite (mol%):11.2±2.9 Ferrosilite (mol%):30.7±12.2 Wollastonite (mol%):9.3±6.4 Classifier:C. Agee, UNM Type spec mass (g):21 Type spec location:UNM Main mass:Steve Jurvetson Comments:Fieldname ML-45; submitted by C. Agee Dunitic breccia meteorites are considered rare because they are classified as achondrites, a type of stony meteorite that lacks chondrules, which are small, round grains found in many other meteorites. Dunitic breccia meteorites are composed primarily of the mineral olivine and pyroxene, with a brecciated texture indicating that they have undergone significant impact processes in space. These meteorites are essential to scientific research because they provide insights into the early history and geological processes of asteroids and other celestial bodies. By studying dunitic breccia meteorites, scientists can learn about the conditions and processes that occurred during the formation and evolution of these objects. This information is crucial for understanding the early Solar System's dynamics and the processes that shaped the planets and other bodies within it. In summary, the rarity of dunitic breccia meteorites and their unique composition make them valuable resources for investigating the history and formation of asteroids and other celestial bodies, contributing to our understanding of the Solar System's evolution.
Price: 100 USD
Location: Riverside, California
End Time: 2024-12-02T02:11:03.000Z
Shipping Cost: N/A USD
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