Location: Reportedly from
Algeria--purchased from intermediaries in Morocco.
Pairings: 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.
Found: 2005
Type: Achondrite, Martian meteorite (basaltic shergottite)
Description from the Meteoritical Bulletin Database:
History: A minimally weathered fully encrusted whole stone of 70.1 g was purchased in Erfoud, Morocco, by M. Farmer in November 2005.
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%).
Classification: Achondrite (Martian basaltic shergottite); moderate to high shock, minimal weathering.
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| # NWA2975-108 | # NWA2975-128 | # NWA2975-130 | # NWA2975-138 | ABOUT SCALE Each photo has a small cube one centimeter on a side. The photo above gives you an idea how big it is. The ruler is in inches at the top. The coin is a US dime. If you are interested in a specimen, I will be happy to send you the dimensions or a photo with different scale. |
| Weight: .108 gm | Weight: .128 gm | Weight: .130 gm | Weight: .138 gm | |
| Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice | |
| Price: $65 | Price: $77 | Price: sold | Price: $83 |
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| # NWA2975-148 | # NWA2975-156 | #NWA2975-164 | #NWA2975-1801 | # NWA2975-188 |
| Weight: .148 gm | Weight: .156 gm | Weight: .164 gm | Weight: .180 gm | Weight: .188 gm |
| Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice |
| Price: sold | Price: $94 | $98 | $108 | Price: sold |
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| # NWA2975-190 | # NWA2975-1901 | #NWA2975-430 | #NWA2975-4301 | # NWA2975-472 |
| Weight: .190 gm | Weight: .190 gm | Weight: .430 gm | Weight: .430 gm | Weight: .472 gm |
| Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice | Features: Part slice |
| Price: $114 | Price: $114 | sold | sold | Price: sold |
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| # NWA2975-526 | #NWA2975-540 | #NWA2975-572 | #NWA2975-604 | #NWA2975-652 |
| Weight: .526gm | Weight: .540 gm | Weight: .572 gm | Weight: .604 gm | Weight: .652 gm |
| Features: Part slice | Features: Part slice | Features: Individual, 25% crust | Features: Part slice | Features: Part slice |
| Price: sold | $324 | sold | $362 | $391 |
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| #NWA2975-1-146 | #NWA2975-1-272 | #NWA2975-1-588 | #NWA2975-1-688 | #NWA2975-1-852 |
| Weight: 1.146 gm | Weight: 1.272 gm | Weight: 1.588 gm | Weight: 1.688 gm | Weight: 1.852 gm |
| Features: Individual, 25% crust | Features: Individual, 5% crust | Features: Individual, 0% crust | Features: Individual, 40% crust | Features: Individual, 95% crust |
| $687 | $763 | $952 | sold | $1111 |
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| #NWA2975-2-228 | # NWA2975-2-286 | #NWA2975-2-980 | #NWA2975-3-198 | #NWA2975-3-278 |
| Weight: 2.228 gm | Weight: 2.286 gm | Weight: 2.980 gm | Weight: 3.198gm | Weight: 3.278 gm |
| Features: Individual, 50% crust | Features: Individual, 90% crust | Features: Individual, 60% crust | Features: Individual, 10% crust | Features: Individual, 75% crust |
| $1336 | Price: $1371 | $1788 | $1918 | sold |
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| #NWA2975-7-418 | # NWA2975-11-1 | #NWA2975-11-9 |
| Weight: 7.418 gm | Weight: 11.1 gm | Weight: 11.9 gm |
| Features: Individual, 80% crust | Features: Individual, 95% crust | Features: Individual, 50% crust |
| $4050 | Price: $6660 | $5960 |
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