Meteorite Plutonic Angrite, Rafsa 007. Very Rare, No Reserve. - 0.42 g
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€ 6
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Selected by Francesco Moser
Over 20 years collecting meteorites; former museum curator and experienced restorer.
Estimate € 120 - € 170
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Rafsa 007 is a plutonic angrite meteorite from Tindouf, Algeria (Rafsa area), with olivine as the main mineral and a weight of 0.42 g.
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Description from the seller
Rafsa 007 28.642936°N, 8.199231°W
Tindouf, Algeria
Purchased: 2023
Classification: Angrite
History: Reportedly, several groups of Sahrawi meteorite hunters found several fragments of this meteorite in an area approximately 100 km north of Tindouf at the end of summer 2023.
Petrography: (K. Metzler, IfP) Ultramafic rock with granular texture, mainly consisting of Ca-rich olivine (up to several mm) which encloses Al-Ti-bearing diopside (up to approximately 1 mm) and small amounts of Cr-bearing pleonast spinel (up to approximately 0.5 mm) and anorthite. The latter frequently occurs as thin (micrometer) rims around spinel grains. Accessories include Fe-Ni metal, troilite, and merrillite. Much of the metal has been terrestrially altered and forms thin veins crossing the entire rock.
Geochemistry: Mineral compositions and geochemistry: Olivine composition: Fa39.0±0.4 (Fa38.4-39.5); Fe/Mn (at.): 87.4; CaO = 1.0-1.3 wt%; n=13.. Pyroxene composition: Fs10.7±0.6 Wo52.9±0.6 (Fs9.7-11.6 Wo51.8-54.0); Fe/Mn (at.): 52.9; Al2O3 (wt%) = 6.9-9.5; TiO2 (wt%) = 1.6-2.4; n=11.. Feldspar composition: An99.4±0.5 Or0.0±0.0 (An98.5-100.0 Or0.00); n=12.. Pleonast spinel: Mg/(Mg+Fe (at.)) = 0.47-0.50; Cr2O3 (wt%) = 4.5-5.5; Al2O3 (wt%) = 56.9-58.6; n=14.
Classification: Plutonic angrite, based on mineral chemistry and texture.
Shock stage: U-S1
Weathering grade: Moderate
Classifier: K. Metzler, IfP
This lot comes with a certificate of authenticity.
Thanks for your interest.
Rafsa 007 28.642936°N, 8.199231°W
Tindouf, Algeria
Purchased: 2023
Classification: Angrite
History: Reportedly, several groups of Sahrawi meteorite hunters found several fragments of this meteorite in an area approximately 100 km north of Tindouf at the end of summer 2023.
Petrography: (K. Metzler, IfP) Ultramafic rock with granular texture, mainly consisting of Ca-rich olivine (up to several mm) which encloses Al-Ti-bearing diopside (up to approximately 1 mm) and small amounts of Cr-bearing pleonast spinel (up to approximately 0.5 mm) and anorthite. The latter frequently occurs as thin (micrometer) rims around spinel grains. Accessories include Fe-Ni metal, troilite, and merrillite. Much of the metal has been terrestrially altered and forms thin veins crossing the entire rock.
Geochemistry: Mineral compositions and geochemistry: Olivine composition: Fa39.0±0.4 (Fa38.4-39.5); Fe/Mn (at.): 87.4; CaO = 1.0-1.3 wt%; n=13.. Pyroxene composition: Fs10.7±0.6 Wo52.9±0.6 (Fs9.7-11.6 Wo51.8-54.0); Fe/Mn (at.): 52.9; Al2O3 (wt%) = 6.9-9.5; TiO2 (wt%) = 1.6-2.4; n=11.. Feldspar composition: An99.4±0.5 Or0.0±0.0 (An98.5-100.0 Or0.00); n=12.. Pleonast spinel: Mg/(Mg+Fe (at.)) = 0.47-0.50; Cr2O3 (wt%) = 4.5-5.5; Al2O3 (wt%) = 56.9-58.6; n=14.
Classification: Plutonic angrite, based on mineral chemistry and texture.
Shock stage: U-S1
Weathering grade: Moderate
Classifier: K. Metzler, IfP
This lot comes with a certificate of authenticity.
Thanks for your interest.
Details
Name of meteorite
Meteorite Plutonic Angrite, Rafsa 007.
Type of meteorite
Very Rare, No Reserve.
Weight
0.42 g
Country of Origin
Algeria
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