However, there’s another allotrope—first identified in 1967 when scientists examining a meteorite in Canyon Diablo, Arizona—known today as lonsdaleite. Named for the Irish crystallographer ...

In the 1960s, scientists discovered more microscopic diamonds in the remains of the vast Canyon Diablo meteorite ... lend the gem its dark color. The largest diamond ever found was a carbonado ...

What is the oldest artifact at Cincinnati Museum Center? The oldest artifact at Cincinnati Museum Center is the Canyon Diablo meteorite, which is 4.5 billion years old. That's slightly older than ...