Canyon Diablo (meteorite) - Composition and Classification

Composition and Classification

This meteorite is an iron octahedrite. Minerals reported from the meteorite include:

• Cohenite - iron carbide
• Chromite - iron magnesium chromium oxide
• Daubreelite - iron(II) chromium sulfide
• Diamond and lonsdaleite - carbon
• Graphite - carbon
• Haxonite - iron nickel carbide
• Kamacite iron nickel alloy - the most common component.
• base metal sulfides
• Schreibersite - iron nickel phosphide
• Taenite iron nickel alloy
• Troilite a variety of the iron sulfide mineral pyrrhotite. The troilite in this sample is used as the standard reference for sulfur isotope ratios.
• Moissanite - a variety of silicon carbide, the second hardest natural mineral.

Samples may contain troilite-graphite nodules with metal veins and small diamonds.