Iron, coarse octahedrite (IAB)
Coconino County, Arizona, USA
Found 1875 Approx. recovered weight 10,000+ kg
The Canyon Diablo iron meteorite, estimated to have weighed 60,000 tons, impacted the Earth approximately 50,000 years ago, resulting in a 20-40 megaton explosion. The impact excavated a crater one mile wide and 600 feet deep. Pressures as high as 60 Gpa transformed graphite particles into tiny diamonds, and vaporized 85% of the original mass. Of the remainder, only about 2,000 tons can be accounted for in the form of meteorite fragments, shale balls, metallic spheroids, and other oxidation products. Meteorite fragments account for only 30 tons of this amount.
This specimen is a complete large individual 6,556 grams.
A historic H.H. Nininger collection iron, with hand painted number 34.6007
Weight 6,556 grams
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