Type: Iron Octahedrite; IAB Main Group
From Canyon Diablo near Winslow, Arizona about 40 miles east of Flagstaff.
The Canyon Diablo meteor struck about 40,000 years ago . Estimated size of the meteoroid is 100 feet in diameter with a weight of about 63,000 tons. It made a crater which is roughly 4000 feet wide and 700 feet deep. The crater structure was originally thought to have been caused by a "steam explosion" related to the volcanic activity of the San Francisco mountains about 60 miles away. Research by Eugene Shoemaker and others finally established the true meteoric origin of the crater. Moving at forty thousand miles per hour, the meteor had about ten times more energy per pound than dynamite! On impact, that energy was released and the meteor exploded excavating the crater seen today. The majority of the meteoroid was vaporized and only comparatively small fragments of the giant iron body have been found.
Meteorite specimens have been collected from the area since the late 1880's. In recent years the area has been closed to collecting and these specimens will become increasingly rare.

Structural Class: Coarse octahedrite, Og, Widmanstätten bandwidth 2 -0.5 mm.
Chemical class: Group IA, 7.1% Nickel, 0.46% Cobalt, 0.26% Phosphorus, about 1% Sulfur, about 1% Carbon, 80 ppm Gallium, 320 ppm Germanium, 1.9 ppm Iridium.