Description: Hello, up for sale is Bechar 003 classified as a Lunar Feldspathic Breccia. This beautiful slice weighs 4.739 grams with a perfect polish to one side and insane looking matrix. Electron microprobe analyses were conducted on small slices from four separate stones. Although there is some mineralogical and compositional heterogeneity among these pieces, all consist of mineral clasts of calcic plagioclase (predominantly anorthite but also some sodic bytownite), olivine, low-Ca pyroxene and augite within a very fine grained, sparsely microvesicular matrix containing Ti-chromite, troilite, kamacite and minor secondary barite. This comes with a COA card and display case. Thanks for your interest and take care. Name: Bechar 003 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2022 Country: Algeria Mass: 2.09 kg Bechar 003 30.887N, 3.301W Bechar, Algeria Find: 2022 Mar 24 Classification: Lunar meteorite (feldspathic breccia) History: Many small, similar-appearing stones were found together in Algeria on March 24, 2022, by a team represented by David Lehman. Some of the material was also acquired by John Higgins, Jasper Spencer, Ziyao Wang, and Preston Allen. Physical characteristics: The stones (total 2090 g) lack fusion crust and have light brown weathered exteriors. Fresh interiors are medium gray with diffuse small white clasts and rare tiny metal grains visible. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Electron microprobe analyses were conducted on small slices from four separate stones. Although there is some mineralogical and compositional heterogeneity among these pieces, all consist of mineral clasts of calcic plagioclase (predominantly anorthite but also some sodic bytownite), olivine, low-Ca pyroxene and augite within a very fine grained, sparsely microvesicular matrix containing Ti-chromite, troilite, kamacite and minor secondary barite. Geochemistry: Calcic plagioclase (An70.7-97.7Or1.1-0.0, N = 12), olivine (Fa22.9-49.5, FeO/MnO = 86-114, N = 14), low-Ca pyroxene (23.1-26.5Wo4.3-4.4, Fe)/MnO = 56-57, N = 2), pigeonite (Fs22.0-32.3Wo6.9-12.5, FeO/MnO = 52-61, N =7), augite (Fs11.9-19.4Wo35.8-38.6, FeO/MnO = 42-52, N = 5). Classification: Lunar (feldspathic breccia). Specimens: 60.2 g including a composite four-slice polished thick section at UWB; 1064 g with Mr. D. Lehman; 483 g with Mr. J. Higgins and Mr. J. Spencer; 137 g with WangZ; 431 g with Mr. P. Allen. Data from: MB111 Table 0 Line 0: State/Prov/County:Bechar Date:2022 Mar 24 Latitude:30.887N Longitude:3.301W Mass (g):2090 Pieces:many Class:Lunar (feldsp. breccia) Shock stage:moderate Weathering grade:low Fayalite (mol%):22.9-49.5 Ferrosilite (mol%):23.1-26.5; 22.0-32.3; 11.9-19.4 Wollastonite (mol%):4.3-4.4; 6.9-12.5; 35.8-38.6 Classifier:A. Irving, UWS, and P. Carpenter, WUSL Type spec mass (g):60.2 Type spec location:UWB Main mass:D. Lehman Comments:Work name DL 1110, WZY-123, and SK22-3; submitted by A. Irving
Price: 349.99 USD
Location: Riverside, California
End Time: 2024-10-12T03:41:00.000Z
Shipping Cost: 9 USD
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