THE effect known as the Widmanstatten structure is shown most clearly in those meteoric nickel-iron alloys in which the percentage of nickel lies between certain limits, roughly, from 7 to 14.

The high nickel content in the iron indicated that the jewellery was crafted from an 'out of this world' metal.

"This has been a decade-long detective story, with each recorded meteorite fall providing a new clue," said one astronomer.

In 1925, he suggested that oxidation of ferrous compounds in soils and waters, or of native or meteoric iron, could provide energy for primitive organisms in a manner analogous to that whereby the ...

The items had varying levels of meteorite elements mixed with the other iron, researchers said. Muzeum Częstochowskie Screengrab from Archeologia Żywa's Facebook post The collection is ...