Great quality. Thank you for the good care! kind regards. David van Ooijen
Übersetzung ansehenWinonait-Meteorit NWA 13790. Hoher Eisengehalt. - 29.13 g
Nr. 88482645
Northwest Africa 13790 (NWA 13790)
Purchased: 2020 Nov
Classification: Primitive achondrite (Winonaite)
Physical characteristics: Some fragments have fusion crust. The main mass is 131.4 g.
Petrography: (K. Metzler, IfP) Coarse-grained mafic rock, consisting of olivine (~45 vol%), low-Ca pyroxene (~10 vol%), Ca-rich pyroxene (~20 vol%), plagioclase (~10 vol%), Fe-Ni metal (~15 vol%), and small amounts of troilite. Olivine grains with reverse chemical zoning (Mg-rich reduction rims) occur. Metal occurs as isolated grains and as veins up to several cm in length. The rock shows a metamorphic texture with frequent 120° triple junctions at crystal boundaries and partly poikilitic intergrowths. Typical grain sizes vary between 100 and 500 µm. However, cm-sized areas of olivine and pyroxene, respectively, show identical optical orientation.
Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa3.4±0.6 (Fa2.0-4.1; n=15); Fe/Mn (at.): 15.8. The mean low-Ca pyroxene composition is Fs4.4±0.3Wo1.9±0.2 (Fs3.9-5.0Wo1.6-2.2; n=15); Fe/Mn (at.): 12.6. The mean composition of Ca-rich pyroxene is Fs1.3±0.3Wo43.8±0.6 (Fs0.9-2.2Wo42.9-45.1; n=15); Fe/Mn (at.): 10.7. The mean feldspar composition is An20.9±0.7Or3.0±0.5 (An19.9-22.1Or2.1-3.8; n=10).
Classification: Winonaite, based on the mineral chemistry and the high abundance and shape of Fe-Ni metal.
Shock stage: M-S1
Weathering grade: Low
Classifier: K. Metzler, IfP.
This lot comes with certificate of authenticity.
Thanks for your interest.
Northwest Africa 13790 (NWA 13790)
Purchased: 2020 Nov
Classification: Primitive achondrite (Winonaite)
Physical characteristics: Some fragments have fusion crust. The main mass is 131.4 g.
Petrography: (K. Metzler, IfP) Coarse-grained mafic rock, consisting of olivine (~45 vol%), low-Ca pyroxene (~10 vol%), Ca-rich pyroxene (~20 vol%), plagioclase (~10 vol%), Fe-Ni metal (~15 vol%), and small amounts of troilite. Olivine grains with reverse chemical zoning (Mg-rich reduction rims) occur. Metal occurs as isolated grains and as veins up to several cm in length. The rock shows a metamorphic texture with frequent 120° triple junctions at crystal boundaries and partly poikilitic intergrowths. Typical grain sizes vary between 100 and 500 µm. However, cm-sized areas of olivine and pyroxene, respectively, show identical optical orientation.
Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa3.4±0.6 (Fa2.0-4.1; n=15); Fe/Mn (at.): 15.8. The mean low-Ca pyroxene composition is Fs4.4±0.3Wo1.9±0.2 (Fs3.9-5.0Wo1.6-2.2; n=15); Fe/Mn (at.): 12.6. The mean composition of Ca-rich pyroxene is Fs1.3±0.3Wo43.8±0.6 (Fs0.9-2.2Wo42.9-45.1; n=15); Fe/Mn (at.): 10.7. The mean feldspar composition is An20.9±0.7Or3.0±0.5 (An19.9-22.1Or2.1-3.8; n=10).
Classification: Winonaite, based on the mineral chemistry and the high abundance and shape of Fe-Ni metal.
Shock stage: M-S1
Weathering grade: Low
Classifier: K. Metzler, IfP.
This lot comes with certificate of authenticity.
Thanks for your interest.
Hauptmineral/ Name Meteorit
Winonait-Meteorit NWA 13790.
Kristallform/ Art Meteorit
Hoher Eisengehalt.
Ergänzung
Preis nicht reservieren.
Gewicht
29,13 g
Herkunftsland
N.W.A.
388 Bewertungen
(207 in den letzten 12 Monaten)
- 205
- 2
- 0
Fast delivery, very well packaged. Quality of product as promised. Very satisfied with purchase.
Übersetzung ansehenEnvoi très rapide, vendeur très professionnel. Je recommande vivement!
Übersetzung ansehenAll perfect. 100% professionnal.
Übersetzung ansehenPerfectly package, the meteorites are beautiful and very clean , all good thank you
Übersetzung ansehenExcelente!!
Übersetzung ansehenNice object and it was very well packed
Übersetzung ansehenEverything arrived very good item as described thank you.
Übersetzung ansehenAll as described.
Übersetzung ansehenJe recommande, merci 👌🏻
Übersetzung ansehenExcelent very good very recommened++++ Muy recomendado+++
Übersetzung ansehenVery happy with this very nice specimen!
Übersetzung ansehengreat seller
Übersetzung ansehenEverything went smoothly, extremly fast shipping
Übersetzung ansehenAnother great piece arrived, quick posting, very good deal, happy with it! Have done several purchases and never any complaints! Recommended seller!
Übersetzung ansehenJe suis très satisfait du produit et à la vitesse qu'il m'a été livré. L'emballage était impeccable et le certificat d'authenticité était bien présent.
Übersetzung ansehenSehr schöne Stücke, schnelle und sichere Lieferung top seller.
Übersetzung ansehenNice moon meteorite to add to the collection, at a really good price! Have bought several meteorites before from this person, never dissapointed...! ;)
Übersetzung ansehenparfait très bien emballé correspond à la description livraison rapide vendeur serieux
Übersetzung ansehen4th time I bought from this person, a total of 6 meteorites. Has been a good experience, nice specimens at a good price. Maybe people hesitate as for the name (user...) but they shouldn't! Good stuff!
Übersetzung ansehenThank you very much! A priceless object.
Übersetzung ansehenfast and good delivery, I recommend 👍
Übersetzung ansehenEncore une fois, tout est conforme et l'emballage comme l'expédition sont soignés, Merci ! Steve.
Übersetzung ansehenTrès bien !
Übersetzung ansehen388 Bewertungen
(207 in den letzten 12 Monaten)
- 205
- 2
- 0
Great quality. Thank you for the good care! kind regards. David van Ooijen
Übersetzung ansehen
