Meteorite. CVoxA3. Carbonaceous (NWA 17324). - 5.34 g - (1)
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Seleccionado por Francesco Moser
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Meteorito CVoxA3, condrita carbonácea (CV3) procedente de Northwest Africa 17324, Argelia, peso 5,34 g.
Resumen redactado con la ayuda de la IA
Descripción del vendedor
Northwest Africa 17324
Purchased: 2024 Jul
Classification: Carbonaceous chondrite (CVox3)
Petrography: (K. Metzler, IfP) Chondrules, CAIs and AOAs are embedded in a dark fine-grained matrix, which mainly consists of equilibrated Fe-rich olivine (about 40 vol% matrix). Most chondrules have apparent diameters between 0.2 and 1.2 mm. CAIs with sizes up to 0.6 mm have been found. Type II chondrules are rare. Opaque minerals are sulfides with varying Ni contents and Ni-rich metal.
Geochemistry: Mineral compositions and geochemistry: The mean composition of equilibrated olivine grains in matrix is Fa50.6±0.3 (n=x2). Random measurements of olivine grains in chondrules and chondrule fragments revealed Fa8.8±4.6 (Fa2.4-16.2); n=10. The mean composition of low-Ca pyroxene in chondrules and chondrule fragments is Fs1.0±0.3 Wo0.9±0.2 (Fs0.7-1.4 Wo0.6-1.2); n=13. Ni concentration in sulfides (wt%): 4.2±8.4 (0.1-22.4); n=10. Ni concentration in metal (wt%): 66.1±5.3 (53.0-68.3); n=8.
Classification: CV chondrite based on CAI and AOA occurrence, apparent sizes of chondrules and CAIs, chondrule-matrix ratio, and mineral chemistry. Petrologic type 3 based on the chemical variation of olivine and pyroxene. Mean Ni concentrations in metal and sulfide are in the range of the CVoxA subgroup
Shock stage: C-S3
Weathering grade: Moderate
Classifier: K. Metzler, IfP
This lot comes with certificate of authenticity.
Thanks for your interest.
Northwest Africa 17324
Purchased: 2024 Jul
Classification: Carbonaceous chondrite (CVox3)
Petrography: (K. Metzler, IfP) Chondrules, CAIs and AOAs are embedded in a dark fine-grained matrix, which mainly consists of equilibrated Fe-rich olivine (about 40 vol% matrix). Most chondrules have apparent diameters between 0.2 and 1.2 mm. CAIs with sizes up to 0.6 mm have been found. Type II chondrules are rare. Opaque minerals are sulfides with varying Ni contents and Ni-rich metal.
Geochemistry: Mineral compositions and geochemistry: The mean composition of equilibrated olivine grains in matrix is Fa50.6±0.3 (n=x2). Random measurements of olivine grains in chondrules and chondrule fragments revealed Fa8.8±4.6 (Fa2.4-16.2); n=10. The mean composition of low-Ca pyroxene in chondrules and chondrule fragments is Fs1.0±0.3 Wo0.9±0.2 (Fs0.7-1.4 Wo0.6-1.2); n=13. Ni concentration in sulfides (wt%): 4.2±8.4 (0.1-22.4); n=10. Ni concentration in metal (wt%): 66.1±5.3 (53.0-68.3); n=8.
Classification: CV chondrite based on CAI and AOA occurrence, apparent sizes of chondrules and CAIs, chondrule-matrix ratio, and mineral chemistry. Petrologic type 3 based on the chemical variation of olivine and pyroxene. Mean Ni concentrations in metal and sulfide are in the range of the CVoxA subgroup
Shock stage: C-S3
Weathering grade: Moderate
Classifier: K. Metzler, IfP
This lot comes with certificate of authenticity.
Thanks for your interest.
Datos
Número de artículos
1
Nombre del meteorito
Meteorite. CVoxA3.
Tipos de meteoritos
Carbonaceous (NWA 17324).
Peso
5,34 g
País de origen
Algeria
Vendido por
