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Visualizza traduzioneMeteorite marziano (Shergottite, Olivine-Bearing). NEA 053. - 1.15 g - (1)
N. 89684341
Northeast Africa 053 (NEA 053).
Purchased: 2023
Classification: Martian meteorite (Shergottite)
History: Reportedly this stone was found in Libya.
Petrography: (K. Metzler, IfP) Igneous rock, dominated by elongated pyroxene grains (low-Ca and Ca-rich pyroxene) up to 3 mm and isometric olivine grains up to 2.5 mm, with an interstitial mixture of lathy skeletal plagioclase and pyroxene grains. Olivine and pyroxene crystals show igneous chemical zoning. Point counting on thin section images revealed 33 vol% olivine, 40 vol% pyroxene, and 27 vol% plagioclase. The latter has been completely transformed to maskelynite. Accessories are an SiO2 polymorph, ilmenite and titanomagnetite.
Geochemistry: Mineral compositions and geochemistry: Mean mineral compositions: Olivine Fa46.0±12.9 (Fa28.5-62.9); Fe/Mn (at.): 52.9; n=11. Low-Ca pyroxene Fs31.4±9.5 Wo7.2±2.8 (Fs25.4-47.6Wo4.7-12.6); Fe/Mn (at.): 29.9; n=12. Ca-rich pyroxene Fs23.0±1.4Wo30.5±3.7 (Fs21.5-25.9Wo26.0-37.2); Fe/Mn (at.): 32.4; n=14. Plagioclase (maskelynite) An46.3±2.3Or2.4±0.5 (An43.0-49.8Or1.7-3.1); n=12. Fusion crust composition (wt%): Na2O: 1.3; MgO: 14.5; Al2O3: 6.2; SiO2:48.1; P2O5: 0.8; K2O: 0.1; CaO: 7.4; TiO2: 0.8; Cr2O3: 0.4; MnO: 0.5; FeO: 19.7
Classification: Martian (Shergottite, olivine-bearing), based on texture and mineral chemistry.
Shock stage: M-S4
Weathering grade: low
Classifier: K. Metzler, IfP
This lot comes with certificate of authenticity.
Thanks for your interest.
Northeast Africa 053 (NEA 053).
Purchased: 2023
Classification: Martian meteorite (Shergottite)
History: Reportedly this stone was found in Libya.
Petrography: (K. Metzler, IfP) Igneous rock, dominated by elongated pyroxene grains (low-Ca and Ca-rich pyroxene) up to 3 mm and isometric olivine grains up to 2.5 mm, with an interstitial mixture of lathy skeletal plagioclase and pyroxene grains. Olivine and pyroxene crystals show igneous chemical zoning. Point counting on thin section images revealed 33 vol% olivine, 40 vol% pyroxene, and 27 vol% plagioclase. The latter has been completely transformed to maskelynite. Accessories are an SiO2 polymorph, ilmenite and titanomagnetite.
Geochemistry: Mineral compositions and geochemistry: Mean mineral compositions: Olivine Fa46.0±12.9 (Fa28.5-62.9); Fe/Mn (at.): 52.9; n=11. Low-Ca pyroxene Fs31.4±9.5 Wo7.2±2.8 (Fs25.4-47.6Wo4.7-12.6); Fe/Mn (at.): 29.9; n=12. Ca-rich pyroxene Fs23.0±1.4Wo30.5±3.7 (Fs21.5-25.9Wo26.0-37.2); Fe/Mn (at.): 32.4; n=14. Plagioclase (maskelynite) An46.3±2.3Or2.4±0.5 (An43.0-49.8Or1.7-3.1); n=12. Fusion crust composition (wt%): Na2O: 1.3; MgO: 14.5; Al2O3: 6.2; SiO2:48.1; P2O5: 0.8; K2O: 0.1; CaO: 7.4; TiO2: 0.8; Cr2O3: 0.4; MnO: 0.5; FeO: 19.7
Classification: Martian (Shergottite, olivine-bearing), based on texture and mineral chemistry.
Shock stage: M-S4
Weathering grade: low
Classifier: K. Metzler, IfP
This lot comes with certificate of authenticity.
Thanks for your interest.
- 198
- 3
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All perfect.
Visualizza traduzioneWonderful transaction, beautiful pieces, great seller!
Visualizza traduzioneDziękuję za ekspresową dostawę
Visualizza traduzioneThanks very muchfir zending the stone
Visualizza traduzioneAlways very nice specimens, good price, good service!
Visualizza traduzioneFast shipping , item as described thank you.
Visualizza traduzioneDie Lieferung erfolgte zeitnah. Das angebotene Zertifikat für das Produkt fehlt! Somit ist das Produkt nicht vollständig.
Visualizza traduzioneParfait. Merci.
Visualizza traduzionebien emballé bien reçu je suis satisfaite MERCI
Visualizza traduzioneGreat quality. Thank you for the good care! kind regards. David van Ooijen
Visualizza traduzioneFast delivery, very well packaged. Quality of product as promised. Very satisfied with purchase.
Visualizza traduzioneEnvoi très rapide, vendeur très professionnel. Je recommande vivement!
Visualizza traduzioneAll perfect. 100% professionnal.
Visualizza traduzionePerfectly package, the meteorites are beautiful and very clean , all good thank you
Visualizza traduzioneExcelente!!
Visualizza traduzioneNice object and it was very well packed
Visualizza traduzioneEverything arrived very good item as described thank you.
Visualizza traduzioneAll as described.
Visualizza traduzioneJe recommande, merci 👌🏻
Visualizza traduzioneExcelent very good very recommened++++ Muy recomendado+++
Visualizza traduzioneVery happy with this very nice specimen!
Visualizza traduzionegreat seller
Visualizza traduzioneEverything went smoothly, extremly fast shipping
Visualizza traduzione- 198
- 3
- 0
Muy contento con el vendedor, envío rápido, embalaje perfecto y articulo idéntico al de las fotos. Repetiría sin dudarlo.
Visualizza traduzione