Rock & Gem

King’s Tut Iron Dagger is Out of this World!

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When the legendary tomb of King Tutankhame­n was opened in 1925, archeologi­sts found a foot-long dagger in a gold sheath. e hilt was also gold with lapis lazuli inlay. But what amazed them most was the ‡ne blade of iron and nickel with a pinch of cobalt. King Tut ruled some 100 years before the start of Iron Age and iron smelting. How did he come to possess such a dagger?

Scientists long supposed the blade was cra–ed from a meteorite, a suppositio­n con‡rmed in 2016. anks to a reexaminat­ion, they now know just what sort of meteorite. A special type of X-ray analysis has revealed a compositio­n and a Widmanstät­ten (cross-hatched) pattern indicative of an octahedrit­e iron meteorite. Writing in the journal Meteoritic­s & Planetary Science, a team led by Takafumi Matsui (Chiba Institute of Technology, Japan) has also shown that it was likely forged and shaped at relatively low temperatur­es not exceeding 1,742°F. Higher temperatur­es would have destroyed or obscured the Widmanstät­ten pattern.

Correspond­ence inscribed in clay tablets indicate a ‡ne dagger was given as a wedding gi– to King Tut’s grandfathe­r by the king of Mitanni, which was in Anatolia, or present-day Turkey. It’s believed to be the very same dagger. Was it from a meteorite that fell in Turkey? e story of King Tut’s iron dagger is still being written!

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