 Northwest Africa 2995
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Northwest Africa 2995
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A 538 g, fully crusted and minimally weathered stone was purchased in Morocco by A. Aaronson in November 2005. Petrography and Geochemistry: (T. Bunch and J. Wittke, NAU): The feldspathic fragmental breccia contains many highlands fine-grained lithologies including norite (orthopyroxene, Fs26.4Wo4, FeO/MnO = 66); olivine basalt (olivine, Fa87.2 FeO/MnO = 95; plagioclase, An84.7); subophitic basalt (Ca-pyroxene, Fs25-48Wo37.1-25.9; pigeonite, Fs27.8-31.7Wo15.4-9.3 FeO/MnO = 53; olivine Fa36.3 FeO/MnO = 90; plagioclase, An97); gabbro (olivine Fa34.7 FeO/MnO = 95; pigeonite Fs28.2Wo8.9 FeO/MnO = 67; plagioclase An94); KREEPy-like basalt (plagioclase, Ab50Or17.4; K-feldspar, Ab14.3Or83.6 in addition to silica, phosphate and Fe-rich pyroxenes); troctolite (Fa30.8 FeO/MnO = 94; plagioclase An94.7); granulitic impact melts (Fa31; orthopyroxene, Fs25.2Wo3.4; plagioclase An95); anorthosite (An92.7-96,8); glassy impact melts, coarse-grained mineral fragments, and a 0.350 mm sized grain of meteoritic Ni, Fe metal (Ni = 6.3 Co = 1.0, both wt %). In addition, the assemblage appears to be characterized by large amounts of breccias within breccias: at least 4 generations of brecciation were observed in one cm-sized breccia clast. Numerous shock-induced melt veins are present along large breccia clast margins as well as isolated melt pockets within clasts. Interior weathering grade is very low, all glasses are fresh and no apparent terrestrial alteration veins were noted. Classification: Achondrite (Lunar feldspathic breccia). Specimens: A 21.2 g specimen is on deposit at NAU. |
Click images to enlarge:
Photos of the 521 gram Meteorite prior to cutting.
Thin section photos by John Kashuba
CERTIFICATE OF AUTHENTICITY and product ID card included with each specimen.
Notice the beautiful anorthositic clasts in this meteorite.
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.054 grams and measures 5.0 mm by 3.5 mm by 1.0 mm thick at widest points. Nice big anorthositic clast. First photo shows specimen in removable display box, third photo is for size reference. - $110- |
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.078 grams and measures 12.5 mm by 3.2 mm by 1.0 mm thick at widest points. The outside edge of the meteorite is represented by the top edge in the second photo. First photo shows specimen in removable display box, third photo is for size reference. - $150- |
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.134 grams and measures 6.3 mm by 5.3 mm by 1.1 mm thick at widest points. First photo shows specimen in removable display box, third photo is for size reference. - $270- |
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.166 grams and measures 14.4 mm by 5.5 mm by 1.0 mm thick at widest points. There is fusion crust along the top edge as referenced in the second photo. First photo shows specimen in removable display box, third photo is for size reference. - $330- |
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.250 grams and measures 10.8 mm by 9.5 mm by .9 mm thick at widest points. First photo shows specimen in removable display box, third photo is for size reference. - $500- |
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.630 grams and measures 17.9 mm by 17.0 mm by .8 mm thick at widest points. Lots of Anorthositic clasts and a great surface to weight ratio on this specimen. First photo shows specimen in removable display box, third photo is for size reference. - $1250- |
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1.506 grams and measures 38.1 mm by 23.6 mm by 1.0 mm thick at widest points. Lots of Anorthositic clasts and a great surface to weight ratio. This is a great specimen. First photo shows specimen in removable display box, third photo is for size reference. - $3000- |
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4.5 gram FULL SLICE. This beautiful full slice of this lunar meteorite measures 73.0 mm by 35.4 mm by .9 mm thick at widest points. First photo shows specimen in removable membrane suspension display box, Notice the huge anorthositic clast in additon to the numerous other large clasts. Third photo is opposite side with quarter for size reference. This is a stunning slice and has a very large surface to weight ratio. - $9000- |
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All photos and text are copyright and may not be used without permission. |
All photos and text are copyright and may not be used without permission.
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