NWA 2975 (Paired) Martain Basalt Meteorites for Sale
Location: Reportedly from Algeria--purchased from intermediaries in Morocco.
Found: 2005
Type: Achondrite, Martian meteorite (basaltic shergottite)
Description: Petrography: A medium-grained (<3.1 mm greatest dimension) basaltic shergottite that consists of ~57.3 vol% augite and pigeonite pyroxenes, and 38.3 vol% plagioclase (present as shock-formed maskelynite and glasses) with minor opaques (2.7 vol%) and phosphates (1.7 vol%) arranged in a weakly foliated subophitic to granular texture. Accessory phases include ulvöspinel, ilmenite, chlorapatite, merrillite, pyrrhotite, Si-Al-Na-K-rich glasses, and baddeleyite. Vesicular black glass veins (<3 mm in width) and pockets (up to 6 mm) are prominent. Geochemistry: Pigeonite (Fs35.2-57.6Wo12.6-16.5; and augite (Fs27.2-41.5 Wo30.8-35.2) show mottled compositional zoning. Fe-rich margins of pigeonite contain very thin (0.2-0.5 µm) orthopyroxene exsolution lamellae. Maskelynite is compositionally homogeneous An55Or1.8 in contrast to mesostasis maskelynite (An48-60Or9.2) and glasses. Melt inclusions (15-60 µm, longest dimension) in ulvöspinel have rims of Fe-rich pigeonite (Fs73.5Wo5.8), merrillite, and pyrrhotite; cores are Si-Al-K-Na-rich glass. Bulk composition: Calculated average bulk composition based on analyzed phases and their modes of three melt inclusions is: SiO2 = 70.2, Al2O3 = 8.5, TiO2 = 0.8, FeO = 2.1, MnO = 0.2, MgO = 2.35, CaO = 3.5, Na2O = 0.95, K2O = 2. 1, and P2O5 = 2.8 (all wt%) with trace amounts of NiO, CoO, and S. One melt inclusion contains only fayalite (Fa84) mantled around a core of glass (K2O = 6.4, SiO2 = 78; both wt%). From Meteoritical Bulletin Database.
Paired to NWA 2986, NWA 4766, NWA 4783 and perhaps others. Numerous parcels of this meteorite have been sold in Morocco. I don't expect that every parcel will get its own number. Most likely it will be known as NWA 2975 since that is the number associated with the best description. The meteorites listed on this page are paired to these and to NWA 2975.
Link to Meteoritical Bulletin Database.
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| # NWA2975-086 | #NWA2975-102 | #NWA2975-116 | # NWA2975-1461 | About Scale: Each photo has a small one centimeter cube. That's a little less than a half inch on a side. The coin above is a US dime. |
| Weight: .086 gm | Weight: .102 gm | Weight: .116 gm | Weight: .146 gm | |
| Features: Slice of fragment | Features: Individual, a bit of crust | Features: Slice of fragment | Features: Slice of fragment | |
| Price: $52 | $51 | $70 | Price: $88 |
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| #NWA2975-186 | #NWA2975-202 | # NWA2975-300 | # NWA2975-316 | #NWA2975-366 |
| Weight: .186 gm | Weight: .202 gm | Weight: 0.300 gm | Weight: .316 gm | Weight: .366 gm |
| Features: Individual, weathered crust | Features: Slice of fragment | Features: Individual, weathered crust | Features: Part slice | Features: Part slice |
| $93 | $121 | Price: sold | Price: $188 | $220 |
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| #NWA2975-370 | #NWA2975-522 | #NWA2975-686 | #NWA2975-882 | #NWA2975-928 |
| Weight: .370 gm | Weight: 0.522 gm | Weight: .686 gm | Weight: .882 gm | Weight: 0.928 gm |
| Features: Part slice | Features: Slice of fragment | Features: Part slice | Features: Individual, 75% crust | Features: Individual, a bit of crust |
| $222 | $313 | $412 | $441 | $400 |
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| #NWA2975-1-272 | #NWA2975-1-318 | #NWA2975-1-488 | #NWA2975-1-728 | #NWA2975-1-904 |
| Weight: 1.272 gm | Weight: 1.138gm | Weight: 1.488 gm | Weight: 1.728 gm | Weight: 1.904 gm |
| Features: Individual, 5% crust | Features: Individual, 90% crust | Features: Individual, 40% crust | Features: Slice of fragment | Features: Individual, 90% crust |
| $763 | $659 | $744 | $1037 | $952 |
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| #NWA2975-2-224 | # NWA2975-2-286 | # NWA2975-2-508 | #NWA2975-2-980 | #NWA2975-3-080 |
| Weight: 2.224 gm | Weight: 2.286 gm | Weight: 2.508 gm | Weight: 2.980 gm | Weight: 3.080 gm |
| Features: Individual, 85% crust | Features: Individual, 90% crust | Features: Individual, 75% crust | Features: Individual, 60% crust | Features: Individual, 75% crust |
| $1112 | Price: $1371 | Price: $1254 | $1788 | $1540 |
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| #NWA2975-3-198 | #NWA2975-7-418 | # NWA2975-11-1 |
| Weight: 3.198gm | Weight: 7.418 gm | Weight: 11.1 gm |
| Features: Individual, 10% crust | Features: Individual, 80% crust | Features: Individual, 95% crust |
| $1918 | $4050 | Price: $6660 |
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