Siderite China Nantan (3) Meteorites Raw Minerals Stones Rocks Collecting

Rare fragment of meteoric origin 4.1 gr - mm 21 x 16 x 6 Meteorites Siderites Raw Minerals Stones Rocks for Collection, in plexiglas box diam. cm 3, only a piece, as in photos.
Iron Octahedrite, class IIICD (2000), IAB-MG, from individual Meteorite TKW (Thousand Kernel Weight) 9,500 Kg.
Year of fall: 1516, found near the city of Nantan, Nandan County, Guangxi (China).
Included to the Meteorite a comprehensive  geological tab dates paper (location, structural class, chemistry, age, history, etc.).

The Nantan meteorite is an iron meteorite that belongs to the IAB group and the MG (main group) subgroup.
As of December 2012, pieces of Nantan meteorite were on sale at US$1/g.
The fall of the meteorite might have been observed in 1516, but it is difficult to assess if this event is connected with the pieces that were retrieved in 1958.
The meteorite burst during passage through the atmosphere and the pieces were scattered in a strewn field 28 kilometres (17 mi) long and 8 kilometres (5.0 mi) wide near the city of Nantan, Nandan County, Guangxi (China). The meteorite was named after the city.
The fragments were not retrieved until the 1950s when they were gathered for smelting to make metal for the growing industrialization of China. It was found that the meteoric iron contained too much nickel for smelting.
The Nantan meteorite was classified as an IIICD in 2000, but was reclassified as an IAB-MG in 2006. 9,500 kilograms (20,900 lb) have been retrieved, the largest fragment having a mass of 2,000 kilograms (4,400 lb). Most fragments show strong signs of weathering, due to the long time it took to retrieve them. The meteoric iron has a Nickel concentration of 6.96%
The largest fragment of Nantan meteorite is exhibit in the National Museum of Nature and Science of Tokyo, Japan.

Group: IIICD (2000), IAB-MG (2006)
Composition: Meteoric iron, 6.96% Nickel.
Country: China
Region: Guangxi
Coordinates: 25°6'N 107°42'E
Observed fall: possible
Fall date: 1516
Found date: 1958
TKW: 9,500 kilograms (20,900 lb)
Strewn field: Yes