Description: TOP SPECIMEN, AKA GOLDEN MARTIAN!!!! ALMOST GONE!! Hello, up for sale is NWA 14899 classified as Martian Olivine Gabbroic Shergottite!! This beautiful full slice weighs 1.212 grams, with a mirrior polish to one side and a yellow gold color to it. Sample displays a gabbroic texture (Av. silicate grain size ~1.1 mm, up to 5.5 mm, n=105) composed of sub-rounded olivine, prismatic and elongate zoned pyroxene (mostly pigeonite, some displaying augite exsolution lamellae), and elongate plagioclase (completely converted into maskelynite) . Accessory phases include Ti-bearing Cr-rich spinel, ilmenite, merrillite, and troilite. I will include a COA card and display case with this lot. Thanks for your interest and take care!! THIS IS A VERY GORGEOUS AND UNIQUE MARTIAN METEORITE, KNOWN AS THE GOLDEN MARTIAN!!! Name: Northwest Africa 14899 This is an OFFICIAL meteorite name. Abbreviation: NWA 14899 Observed fall: No Year found: 2022 Country: (Northwest Africa) Mass: 155 g Northwest Africa 14899 (NWA 14899) (Northwest Africa) Purchased: 13 March 2022 Classification: Martian meteorite (Shergottite) History: Purchased on March 13, 2022. by Matthew Stream from Bachir Salek in Algeria. Physical characteristics: Five stones with slightly weathered fusion crust. Petrography: (D. Sheikh, Cascadia) Sample displays a gabbroic texture (Av. silicate grain size ~1.1 mm, up to 5.5 mm, n=105) composed of sub-rounded olivine, prismatic and elongate zoned pyroxene (mostly pigeonite, some displaying augite exsolution lamellae), and elongate plagioclase (completely converted into maskelynite) . Accessory phases include Ti-bearing Cr-rich spinel, ilmenite, merrillite, and troilite. Geochemistry: Olivine (Fa41.31.8, range Fa38.3-44.1, Fe/Mn=512, n=12), Low-Ca Pyroxene (Fs24.61.2Wo4.90.9, range Fs23.8-25.5Wo4.3-5.5, Fe/Mn=291, n=2), Pigeonite (Fs29.83.6Wo9.42.0, range Fs25.7-34.4Wo6.6-14.6, Fe/Mn=312, n=20), High-Ca Pyroxene (Fs22.11.1Wo31.21.0, range Fs21.3-22.8Wo30.4-31.9, Fe/Mn=261, n=2), Plagioclase (An50.44.3Or2.00.3, range An40.7-53.9Or1.5-2.8, n=18), Cr-rich Spinel (Cr#=83.30.8, Mg#=10.20.9, TiO2 wt. % = 4.93.3, n=3). Classification: Martian (olivine gabbroic). Specimens: 20.2 g at Cascadia, main mass with Matthew Stream. Data from: MB111 Table 0 Line 0: Place of purchase:Algeria Date:P 13 March 2022 Mass (g):155 Pieces:five Class:Martian (shergottite) Shock stage:high Weathering grade:low Fayalite (mol%):41.31.8 Ferrosilite (mol%):24.61.2, 29.83.6, 22.11.1 Wollastonite (mol%):4.90.9, 9.42.0, 31.21.0 Classifier:D. Sheikh, Cascadia Type spec mass (g):20.2 Type spec location:Cascadia Main mass:Matthew Stream Comments:CML 1501; submitted by Daniel Sheikh
Price: 149.99 USD
Location: Riverside, California
End Time: 2025-02-13T06:06:17.000Z
Shipping Cost: N/A USD
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