Description: "Greetings! Available for purchase is NWA 13917, a rare Winonaite (Primitive Achondrite) meteorite. This exquisite slice weighs 3.289 grams and features a flawless polish on one side, showcasing an acid-etched metal vein with high metal content. Winonaites, closely linked to IAB iron meteorites, offer valuable insights into the early Solar System's asteroid differentiation processes. Despite their significance, there remains limited knowledge about the diverse lithology and structure of the winonaite parent asteroid. Included with this meteorite is a Certificate of Authenticity (COA) from Streaming Meteorites and a display case. Thank you for your interest and stay safe." Winonaite meteorites are a type of achondrite meteorite that are composed mostly of the mineral olivine, along with pyroxenes and metallic nickel-iron. They are believed to be remnants of a larger body in the asteroid belt that underwent extensive melting and differentiation, resulting in the formation of their unique composition. The importance of Winonaite meteorites lies in the insight they provide into the early history and processes of planetary formation in our solar system. By studying these meteorites, scientists can learn more about the conditions that existed in the early solar system, the processes of differentiation and melting that occurred in larger planetary bodies, and the subsequent evolution of these bodies. Additionally, Winonaite meteorites can provide valuable information about the composition and mineralogy of asteroids, as well as the potential resources that may exist on these celestial bodies. This knowledge can be crucial for future space exploration missions, including asteroid mining and planetary defense initiatives. Overall, Winonaite meteorites play a significant role in advancing our understanding of the solar system's formation and evolution, as well as offering insights that can benefit future space exploration endeavors. Beware of buyer : kfed6903 I recommend you block this person from bidding on any auctions. As soon as he won the auction he canceled for no apparent reason... This is an OFFICIAL meteorite name. Abbreviation: NWA 13917 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: 5.2 kg Northwest Africa 13917 (NWA 13917) (Northwest Africa) Purchased: 2020 Classification: Primitive achondrite (Winonaite) History: Purchased from Morocco in September 2020 and January 2021. Physical characteristics: Several identical appearing stones found together -- the largest of which are individuals weighing 1.6 kg, 1.4 kg, and 1.2 kg. Saw-cut surface shows abundant fine-grained metal and sulfide set in a mosaic of brown and gray silicate minerals. A prominent metal vein 2 mm thick and several cm in length crosscuts the deposit sample slice. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a texturally equilibrated mosaic of enstatite and diopside with grain size in the range 100-300 μm, many triple junctions are present. Forsterite is ubiquitous but is significantly less abundant than the pyroxenes. Kamacite, taenite, and troilite make up approximately 10% of this meteorite, most grains are 100-300 μm in diameter. A phosphate phase was detected. No feldspar was observed in the microprobe mount. Classification: Primitive achondrite (Winonaite) Specimens: 67.9 g on deposit at UNM. Mark Lyon holds the main masses. Data from: MB110 Table 0 Line 0: Place of purchase:Morocco Date:P 2020 Mass (g):5.2 kg Pieces:several Class:Winonaite Shock stage:low Weathering grade:moderate Fayalite (mol%):4.0±0.0 Ferrosilite (mol%):4.7±0.2, 1.3±0.4 Wollastonite (mol%):1.9±0.2, 44.8±0.3 Classifier:C. Agee, UNM Type spec mass (g):67.9 Type spec location:UNM Main mass:Mark Lyon Comments:Submitted by C. Agee
Price: 89.99 USD
Location: Riverside, California
End Time: 2024-12-14T06:26:16.000Z
Shipping Cost: 11 USD
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