Nice inclusion cristal from Mesosiderite NWA 16544 slice Stony-Iron Meteorite - 1.47 g - (1)

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Francesco Moser
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Selected by Francesco Moser

Over 20 years collecting meteorites; former museum curator and experienced restorer.

Estimate  € 130 - € 190
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cnBidder 1030 €1

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Nice inclusion cristal from Mesosiderite NWA 16544 slice, a stony-iron meteorite from Northwest Africa, Morocco.

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Description from the seller

Northwest Africa 16544 (NWA 16544)

(Northwest Africa)

Purchased: July, 2023

Classification: Mesosiderite

History: The meteorite was purchased from a local meteorite dealer in Temara, Morocco.

Physical characteristics: Two brownish fragments lacking fusion crust.

Petrography: The meteorite is composed of silicate (about 65 vol%) and weakly altered metallic (about 35 vol%) portions. The silicate fraction predominantly consists of up to 2.5 mm sized zoned olivine, zoned low-Ca-pyroxene, exsolved low-Ca pyroxene, and calcic plagioclase. Olivine often contains low-Ca pyroxene-FeS symplectites. Minor phases include silica, chromite, ilmenite, FeS, and merrillite. In the metallic portion kamacite and taenite are present.

Geochemistry: zoned pyroxene: Fs21.5±5.3Wo5.2±5.3 (Fs16.7-28.8Wo1.3-15.3, FeO/MnO=26-33, n=7); low-Ca pyroxene host crystals to augite exsolutions: Fs32.6±0.3Wo4.0±0.3 (Fs32.1-32.7Wo3.6-4.3, FeO/MnO=24-27, n=7); augite exsolutions: Fs15.5±0.5Wo40.8±1.3 (Fs15.0-16.4Wo38.1-41.9, FeO/MnO=18-22, n=7); olivine: Fa18.8±3.0 (Fa15.0-23.6, FeO/MnO=42±4, n=7); calcic plagioclase: An94.2±2.2 (An91.4-97.0, n=7)

Northwest Africa 16544 (NWA 16544)

(Northwest Africa)

Purchased: July, 2023

Classification: Mesosiderite

History: The meteorite was purchased from a local meteorite dealer in Temara, Morocco.

Physical characteristics: Two brownish fragments lacking fusion crust.

Petrography: The meteorite is composed of silicate (about 65 vol%) and weakly altered metallic (about 35 vol%) portions. The silicate fraction predominantly consists of up to 2.5 mm sized zoned olivine, zoned low-Ca-pyroxene, exsolved low-Ca pyroxene, and calcic plagioclase. Olivine often contains low-Ca pyroxene-FeS symplectites. Minor phases include silica, chromite, ilmenite, FeS, and merrillite. In the metallic portion kamacite and taenite are present.

Geochemistry: zoned pyroxene: Fs21.5±5.3Wo5.2±5.3 (Fs16.7-28.8Wo1.3-15.3, FeO/MnO=26-33, n=7); low-Ca pyroxene host crystals to augite exsolutions: Fs32.6±0.3Wo4.0±0.3 (Fs32.1-32.7Wo3.6-4.3, FeO/MnO=24-27, n=7); augite exsolutions: Fs15.5±0.5Wo40.8±1.3 (Fs15.0-16.4Wo38.1-41.9, FeO/MnO=18-22, n=7); olivine: Fa18.8±3.0 (Fa15.0-23.6, FeO/MnO=42±4, n=7); calcic plagioclase: An94.2±2.2 (An91.4-97.0, n=7)

Details

Number of items
1
Name of meteorite
Nice inclusion cristal from Mesosiderite NWA 16544 slice
Type of meteorite
Stony-Iron Meteorite
Supplement
2627
Weight
1.47 g
Country of Origin
Morocco
FranceVerified
1248
Objects sold
100%
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