Meteorito NWA 14680 LL3. Fatia com côndrulos harmônicos. - 20.26 g - (1)
N.º 84184351
Meteorito Carbonáceo CM2, NWA 15523. Não reserve preço. - 2.25 g - (1)
N.º 84184351
Meteorito Carbonáceo CM2, NWA 15523. Não reserve preço. - 2.25 g - (1)
Northwest Africa 15523 (NWA 15523)
Purchased: 2022 May
Classification: Carbonaceous chondrite (CM2)
History: Reportedly found in early 2022 in Hassi Khebi, Algeria.
Petrography: (K. Metzler, IfP) Chondrules, chondrule fragments, CAIs, and PCP(TCI) particles are embedded in a fine-grained black matrix (about 50 vol% matrix). The vast majority of chondrules belong to the chemical type I. Chondrule sizes are mostly between 50 and 300 µm; a few chondrules with sizes up to 1.5 mm are present. Many chondrules are mantled by fine-grained dust. Accessories are troilite, pentlandite, and calcite.
Geochemistry: Mineral compositions and geochemistry: Mean olivine composition: Fa7.2±12.1 (Fa0.3-40.7); n=13. Mean composition of low-Ca pyroxene: Fs1.4±0.7 Wo2.4±1.8 (Fs0.7-2.7 Wo0.9-5.7; n=10)
Classification: CM2 chondrite based on the occurrence of CAIs and PCP (TCI) particles, small chondrule size, chondrule-matrix ratio, and mineral chemistry.
Shock stage: C-S2
Weathering grade: Moderate
Classifier: K. Metzler, IfP.
This lot has no reserve price and comes with its certificate of authenticity.
Thanks for your interest.
Também poderá gostar
Este objeto foi mostrado em
Como comprar na Catawiki
1. Descubra algo especial
2. Faça a licitação vencedora
3. Faça um pagamento seguro