Muy contento con el vendedor, envío rápido, embalaje perfecto y articulo idéntico al de las fotos. Repetiría sin dudarlo.
查看翻译这是仅有的 8 颗陨石中的 1 颗,被认定为无球粒陨石-原始-未分组。 西北地区 15061 - 8.49 g - (1)
编号 89684599
NWA 15061, reclassification
This meteorite is reclassified (K. Metzler, IfP) as an ungrouped primitive achondrite, likely paired with Bir Ounane 001. Oxygen isotopes, obtained by laser fluorination (T. Di Rocco, UGött) are: δ18O= 5.710; δ17O= 1.709; Δ17O= -1.298 (permil). The two meteorites have similar textures and mineral compositions (Fa~1.2, Fs~1.4Wo~0.8).
Northwest Africa 15061 (NWA 15061.
Purchased: 2022 Mar
Before was classified as:
Classification: Primitive achondrite (Winonaite)
History: Reportedly found by Saharawi meteorite hunters in an area called Unan (~120 km SE of Taoudenni), Mali, in February 2022.
Petrography: (K. Metzler, IfP) Achondrite with metamorphic texture, showing frequent 120° triple junctions and partly poikilitic intergrowths. It consists of olivine, low-Ca pyroxene, Ca-rich pyroxene, plagioclase, and Fe-Ni metal. Much of the latter is terrestrially oxidized, forming veins of alteration products along grain boundaries and crosscutting mineral grains. Typical grain sizes are between 200 and 500 µm, but low-Ca pyroxene grains up to several mm occur. Accessories are troilite and daubréelite.
Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa1.2±0.1 (Fa1.0-1.4; n=9). The mean low-Ca pyroxene composition is Fs1.4±0.3Wo0.8±0.1 (Fs0.9-1.8Wo0.5-0.9; n=11). The mean composition of Ca-rich pyroxene is Fs0.9±0.3Wo40.9±0.5 (Fs0.5-1.4Wo40.3-41.6; n=10). The mean feldspar composition is An36.5±2.0Or0.1±0.1 (An32.1-38.6Or0.0-0.4; n=10).
Classification: Winonaite, based on texture, mineral chemistry and high abundance of Fe-Ni metal.
Specimens: 3292 g owned by Mohamed Ali Loud (largest piece 385 g). 2430 g owned by Miguel Ángel Contreras Gómez.
Shock stage: M-S1
Weathering grade: high
This lot has no reserve price and comes with its certificate of authenticity.
Thanks for your interest.
NWA 15061, reclassification
This meteorite is reclassified (K. Metzler, IfP) as an ungrouped primitive achondrite, likely paired with Bir Ounane 001. Oxygen isotopes, obtained by laser fluorination (T. Di Rocco, UGött) are: δ18O= 5.710; δ17O= 1.709; Δ17O= -1.298 (permil). The two meteorites have similar textures and mineral compositions (Fa~1.2, Fs~1.4Wo~0.8).
Northwest Africa 15061 (NWA 15061.
Purchased: 2022 Mar
Before was classified as:
Classification: Primitive achondrite (Winonaite)
History: Reportedly found by Saharawi meteorite hunters in an area called Unan (~120 km SE of Taoudenni), Mali, in February 2022.
Petrography: (K. Metzler, IfP) Achondrite with metamorphic texture, showing frequent 120° triple junctions and partly poikilitic intergrowths. It consists of olivine, low-Ca pyroxene, Ca-rich pyroxene, plagioclase, and Fe-Ni metal. Much of the latter is terrestrially oxidized, forming veins of alteration products along grain boundaries and crosscutting mineral grains. Typical grain sizes are between 200 and 500 µm, but low-Ca pyroxene grains up to several mm occur. Accessories are troilite and daubréelite.
Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa1.2±0.1 (Fa1.0-1.4; n=9). The mean low-Ca pyroxene composition is Fs1.4±0.3Wo0.8±0.1 (Fs0.9-1.8Wo0.5-0.9; n=11). The mean composition of Ca-rich pyroxene is Fs0.9±0.3Wo40.9±0.5 (Fs0.5-1.4Wo40.3-41.6; n=10). The mean feldspar composition is An36.5±2.0Or0.1±0.1 (An32.1-38.6Or0.0-0.4; n=10).
Classification: Winonaite, based on texture, mineral chemistry and high abundance of Fe-Ni metal.
Specimens: 3292 g owned by Mohamed Ali Loud (largest piece 385 g). 2430 g owned by Miguel Ángel Contreras Gómez.
Shock stage: M-S1
Weathering grade: high
This lot has no reserve price and comes with its certificate of authenticity.
Thanks for your interest.
- 198
- 3
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All perfect.
查看翻译Wonderful transaction, beautiful pieces, great seller!
查看翻译Dziękuję za ekspresową dostawę
查看翻译Thanks very muchfir zending the stone
查看翻译Always very nice specimens, good price, good service!
查看翻译Fast shipping , item as described thank you.
查看翻译Die Lieferung erfolgte zeitnah. Das angebotene Zertifikat für das Produkt fehlt! Somit ist das Produkt nicht vollständig.
查看翻译Parfait. Merci.
查看翻译bien emballé bien reçu je suis satisfaite MERCI
查看翻译Great quality. Thank you for the good care! kind regards. David van Ooijen
查看翻译Fast delivery, very well packaged. Quality of product as promised. Very satisfied with purchase.
查看翻译Envoi très rapide, vendeur très professionnel. Je recommande vivement!
查看翻译All perfect. 100% professionnal.
查看翻译Perfectly package, the meteorites are beautiful and very clean , all good thank you
查看翻译Excelente!!
查看翻译Nice object and it was very well packed
查看翻译Top
查看翻译Everything arrived very good item as described thank you.
查看翻译All as described.
查看翻译Je recommande, merci 👌🏻
查看翻译Excelent very good very recommened++++ Muy recomendado+++
查看翻译Very happy with this very nice specimen!
查看翻译great seller
查看翻译Everything went smoothly, extremly fast shipping
查看翻译- 198
- 3
- 0
Muy contento con el vendedor, envío rápido, embalaje perfecto y articulo idéntico al de las fotos. Repetiría sin dudarlo.
查看翻译