Wandering Star Meteorites
Angrite Meteorites
Thin section from testing
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NWA 6291
Classification: Achondrite (angrite, metal-rich)
Found: 2010
Location: Northwest Africa
TKW: 235 gram, single stone (prior to cutting)
Annealed breccia composed of Al-Ti-diopside (Fs10.8+/-0.05Wo53.0+/-0.05, FeO/MnO = 114, Al2O3 = 7.7-7.9 wt.%, TiO2 = 1.3 wt.%), calcic olivine (Fa40.9+/-0.05, FeO/MnO = 94-95, CaO = 1.3-1.5 wt.%), pure anorthite, Cr pleonaste spinel, altered kamacite (~8 vol.%) and troilite. Anorthite occurs as large (up to 3 mm) angular clasts and also as thin coronas around spinel grains. Secondary terrestrial weathering products include iron hyroxides (in veinlets) and minor calcite.
What will ultimately be known as the "King of Angrites" this awesome 235 gram individual was found in the Algerian boarder region in early 2010.
Preliminary testing was performed by Anthony Love at Appalachian State University. Once the unique nature of this was uncovered, it was sent to Dr. Tony Irving at the University of Washington for further testing and submission for an official NWA number.
Material from this stone has also been sent to Germany for a study on anorthite.
Large pure anorthite crystals highlight this incredible meteorite, slices made from this stone have produced the ONLY three Translucent slices of an Angrite meteorite known. One was given as a gift to Anthony Love and I own the other two.
235 gram stone
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3.6 gram translucent slice (Not for sale)
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6.57 gram Translucent slice (side a)
6.57 gram Translucent slice (side b)
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Due to the rarity of this material, I can only offer a limited amount for sale.
Please contact me for pricing and availability of slices shown.
2.36 gram
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4.01 gram
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4.07 gram
2.49 gram - SOLD
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4.47 gram
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5.53 gram - SOLD
________________________________6.57 gram with translucent Anorthite crystal
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7.32 gram with translucent Spinel Crystal - SOLD
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8.34 gram
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8.40 gram
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8.45 gram
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Additional smaller samples are also available. NEW!!!
Here are some links to PDF files that contain a wealth of information on studies that have been done on angrites:
http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2680.pdf
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/1345.pdf
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/2403.pdf
http://www.lpi.usra.edu/meetings/LPSC99/pdf/1953.pdf
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/1381.pdf
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/2453.pdf
http://www.lpi.usra.edu/meetings/lpsc2008/pdf/1936.pdf
http://www.lpi.usra.edu/meetings/lpsc2008/pdf/2143.pdf
http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1423.pdf
http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1612.pdf
http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1522.pdf
http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1203.pdf
http://www.lpi.usra.edu/meetings/metchron2007/pdf/4061.pdf
http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2680.pdf
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/1345.pdf
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/2403.pdf
http://www.lpi.usra.edu/meetings/LPSC99/pdf/1953.pdf
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/1381.pdf
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/2453.pdf
http://www.lpi.usra.edu/meetings/lpsc2008/pdf/1936.pdf
http://www.lpi.usra.edu/meetings/lpsc2008/pdf/2143.pdf
http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1423.pdf
http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1612.pdf
http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1522.pdf
http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1203.pdf
http://www.lpi.usra.edu/meetings/metchron2007/pdf/4061.pdf
