NWA 13160 Eucrite Meteorite Part Slice weighing 0.93g
£31.00
In stock
NWA 13160 Eucrite Meteorite Part Slice weighing 0.93g
Comes in a foam padded Gem jar.
| Northwest Africa 13160 | |||||||||||||||||||||||||||||
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| Basic information | Name:Â Northwest Africa 13160 This is an OFFICIAL meteorite name. Abbreviation:Â NWA 13160 Observed fall:Â No Year found:Â 2019 Country:Â (Northwest Africa) Mass:Â 128.2 g | ||||||||||||||||||||||||||||
| Classification history: |
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| Comments: | Approved 9 Feb 2020 | ||||||||||||||||||||||||||||
| Writeup | Writeup from MB 109: Northwest Africa 13160 (NWA 13160) (Northwest Africa) Purchased: 2019 Classification: HED achondrite (Eucrite) History: The meteorite was purchased from a Morrocan dealer at the mineral show in Munich, Germany. Physical characteristics: Greyish rock with some fusion crust. Petrography: The meteorite is a fine-grained fragmental breccia composed of basaltic clasts and black melt rock clasts up to 2 mm in size set into a clastic matrix. Basaltic clasts and matrix are dominantly composed of exsolved pyroxene and plagioclase grains up to 900 µm in size. Some pyroxenes show compositional zoning indicating a low degree of thermal metamorphism. Minor phases include silica, FeS, chromite, ilmenite, and metallic iron. Geochemistry: low-Ca pyroxene: Fs41.0±9.1Wo5.8±1.2 (Fs28.8-53.7Wo3.5-8.1, FeO/MnO=24-30, n=17); Ca-pyroxene: Fs34.4±9.4Wo36.7±6.2 (Fs24.5-48.4Wo26.4-43.5, FeO/MnO=25-29, n=22); calcic plagioclase: An91.6±0.4 (An90.7-92.0, n=12) | ||||||||||||||||||||||||||||
| Data from: MB109 Table 0 Line 0: |
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