Meteorite: Iron Octahedrite
name: label: Discipline
content: Mineral Sciences
label: Region
content: US Southwest (NM, AZ, UT, NV)
notes: label: Description
content: This object is part of the Education and Outreach collection, some of which are in the Q?rius science education center and available to see.
label: Notes
content: Triangular gray meteor sample known as Canyon Diablo meteorite. These meteorites are named after a nearby canyon of the same name, and consist of fragments of the asteroid that created Barringer Crater (Meteor Crater) near Flagstaff, Arizona, which fell approximately 50,000 years ago. This iron octahedrite meteorite demonstrates the Widmanstatten pattern, a crystalline structure formed by interwoven bands of the nickel-iron minerals, kamacite, and taenite. Kamacite is found on Earth only in meteorites. Widmanstatten patterns are created as the meteorite cools; at high temperatures both iron and nickel have face-centered lattices. When the meteorite is formed it starts out as entirely molten taenite (greater than 1500 degrees C) and as it cools past 723 degrees C, the primary metastable phase of the alloy changes into taenite and kamacite begins to precipitate out.
label: Number of objects in this record
content: 1
label: Record Last Modified
content: 5 Mar 2024
place: label: Collecting Locality
content: Canyon Diablo, North America, United States, Arizona, Coconino County
topic: label: Topic
content: Education & Outreach
setName: label: See more items in
content: Q?rius, The Coralyn W. Whitney Science Education Center
publisher: label: Scientific Name
content: Meteorite: Iron Octahedrite
identifier: label: USNM Number
content: EO45334
objectType: label: Object Type
content: Education and Outreach collections