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| Hassi el Biod 002 | |||||||||||||||||||||||||||||||||
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| Basic information | Name: Hassi el Biod 002 This is an OFFICIAL meteorite name. Abbreviation: HeB 002 Observed fall: No Year found: 2021 Country: Algeria Mass:  10 kg | ||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 12 approved meteorites classified as Pallasite, ungrouped. [show all] Search for other: Metal-rich meteorites, Pallasites | ||||||||||||||||||||||||||||||||
| Comments: | Approved 24 Jul 2021 | ||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Hassi el Biod 002 (HeB 002) 28.6284, 4.7276 Ouargla, Algeria Purchased: 2021 Classification: Pallasite (ungrouped) History: Purchased in 2021 by Mark Lyon from a meteorite dealer in Mauritania. Physical characteristics: Five identically appearing masses (total 10 kg) found together. Saw cut surface shows angular cm-sized dark-orange olivine grains set in metal. There are also smaller scattered olivines set in the host metal. The modal abundances are approximately 60% metal, 38% olivine, 2% troilite. Petrography: (A. Ross and C. Agee, UNM) Electron microprobe analysis and imaging reveal the presence of magnesian olivine, kamacite, and minor troilite. No other phases were detected with both EPMA and SEM searches. Geochemistry: (A. Ross, UNM) Olivine Fa7.7±0, Fe/Mn=24±1, n=6; metal Fe=95.4±0.4, Ni=5.2±0.1 wt%, n=5. Oxygen isotopes (K. Ziegler, UNM): 3 acid-washed fragments analyzed by laser fluorination gave δ18O= 2.820, 3.390, 3.386; δ17O= 0.338, 0.440, 0.650; Δ17O= -1.151, -1.350, -1.138 (linearized, all per mil, TFL slope=0.528). Classification: Pallasite, ungrouped. This is a unique pallasite type both in terms of olivine composition and oxygen isotopes. Along with Milton, this meteorite is the only other ungrouped that is not a pyroxene pallasite, however Milton and this meteorite are not paired and do not have olivine compositions and oxygen isotopes that are similar. Specimens: 25.7 g on deposit at UNM, Mark Lyon holds the main masses. | ||||||||||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
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| Plots: | O isotopes: | ||||||||||||||||||||||||||||||||
| Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) |
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| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:
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Statistics: This is 1 of 44 approved meteorites from Ouargla, Algeria (plus 1 unapproved name) This is 1 of 1294 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||||
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