The Fukang meteorite
was found in the mountains near Fukang
are a type of stony-iron meteorite
with beautiful olivine
), an anonymous finder recovered a 1003 kg mass. He removed from the main mass about 20 kg and in February 2005
the meteorite was taken at the Tucson Gem and Mineral Show
. There it was seen by D.S. Lauretta of University of Arizona
. Afterwards and the mass investigated by D.S. Lauretta, D. Hill, M. Killgore, D. Della-Giustina and Y. Goreva at Southwest Meteorite Center, Lunar and Planetary Laboratory, University of Arizona
Classification and Composition
The Fukang pallasite contains large, gem quality olivine, or peridot, in a nickel
Olivines vary in shape from rounded to angular, many are fractured and they range in size from <5 mm to several cm.
The main mass contains several regions of massive
olivine clusters up to 11 cm in diameter with thin metal veins. Fo86.4
with molar Fe/Mg = 0.1367, Fe/Mn = 40.37, and Ni
= 0.03 wt%. The metal matrix is mostly kamacite
with an average Nickel
contents of 6.98 wt%. Vermicular sulfide (troilite
) is present in some olivine.
Oxygen isotopes: δ18O
2.569 ‰, δ17O
1.179 ‰, ∆1 7O = −0.157 ‰.
A total of 31 kg of type specimen is on deposit at University of Arizona
. M. Killgore holds a total of 31 kg. An anonymous collector holds the main mass.
Notes and References
- http://www.lpi.usra.edu/meetings/lpsc2006/pdf/2250.pdf petrological, mineralogical and geochemical specifics - Lunar and Planetary Institute, 2007