Classification: Iron, ungrouped
Time/Place: 1965 in Johnson County, Oklahoma, USA
Four masses, total 250kg was found. Not only a unique classification, but also a completely unique appearance of the etched black surface.
IRONS IMPORTAND NOTICE:
Each iron slice/endpiece is covered (protected) by a thin layer of Paraloid B44. DO NOT ADD OIL to the specimen surface. You can put it in a dry place or add silica gel to the storage box, but it is not necessary. Samples were bathed in sodium hydroxide solution to neutralize acids, and paraloid cut off oxygen and moisture.