For Sale IconFukang Pallasite Meteorites for Sale

Location:Fukang, Xinjiang Province, China, 44º26N, 87º38E

Found: 2000.

Type: STONY-IRON, Pallasite (main group)

Description: An anonymous finder recovered a 1003 kg specimen near Fukang, China, in 2000. The sample was at the Tucson Gem and Mineral Show in February 2005, and seen by D. S. Lauretta of UAz. Approximately 20 kg had been removed from the main mass by the finder before the Tuscon show and the mass investigated at UAz was 983 kg. Petrography and Geochemistry: Olivine: Throughout the large mass, olivines vary in shape from rounded to angular; many are fractured. They range in size from <5 mm to several cm. The main pallasite contains several regions of “massive” olivine clusters up to 11 cm in diameter with thin metal veins only a few millimeters in width. Fo86.4 with molar Fe/Mg = 0.1367, Fe/Mn = 40.37, and Ni = 0.03 wt%. Zoning was not observed for Al, Cr, Ca, Mn, or Fe typical of olivines in main-group pallasites. Metal and sulfides: Groundmass is mostly kamacite with some occurrences of kamacite mantles surrounding taenite cores, rounded taenite adjacent to kamacite, and regions of “comb plessite. ” Kamacite contains an average Ni = 6.98 wt%. Schreibersite is enclosed by wide kamacite bands and as mantles adjacent to olivines. Two populations of schreibersite are present with Ni = 26 and 35 wt% near chromite. Vermicular sulfide (troilite) is present in some olivine. Thin veins of kamacite and troilite occur inside many olivines as well. Minor phases: Euhedral chromites up to 0.5 cm, rounded whitlockite adjacent to olivine, and troilite heterogeneously distributed in thin veins. Several regions, ranging from <100 µm to several millimeters, that contain a complex mixture of olivine, low-Ca pyroxene, troilite, and whitlockite were observed adjacent to chromite. Bulk composition: Fe = 89.9 ± 0.3, Ni = 9.0 ± 0.2, P = 0.62 ± 0.02, Co = 0.51 ± 0.01 (all wt%); Ge = 41 ± 4, As = 26 ± 5, Ga = 19.1 ± 0.5, Pd = 5.1 ± 0.2, Au = 2.6 ± 0.2, (all µg/g); Ir = 43 ± 4 ng/g. Oxygen isotopes: 18O = 2.569, 17O = 1.179, Æ1 7O = 0.157 per mil.

Link to Meteoritical Bulletin Database.

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#FKG1-118 # FKG1-371 # FKG1-675 #FKG1-729 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: 1.118 gm Weight: 1.371 gm Weight: 1.675 gm Weight: 1.729 gm
Features: Part slice Features: Part slice Features: Part slice Features: Part slice
$50 $60 sold $74

# FKG4-172 #FKG10-178 # FKG16-988 # FKG18-359 # FKG18-388
Weight: 4.172 gm Weight: 10.178 gm Weight: 16.988 gm Weight: 18.539 gm Weight: 18.388 gm
Features: Part slice Features: Part slice Features: Part slice Features: Part slice Features: Part slice
sold sold $685 $739 $741