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rock > igneous rock > differentiated meteorite > metal-rich meteorite > iron meteorite > structural iron meteorite > octahedrite

octahedrite comparison table

Subject	has crystal size	has composition	has structural class
Of octahedrite	0.2 to 0.5 mm (fine)	silicates (with very few exceptions)	Of
Off octahedrite	less than 0.2 mm (finest)	silicates (with very few exceptions)	Off
Og octahedrite	1.3 to 3.3 mm (coarse)	silicates (with very few exceptions)	Og
Ogg octahedrite	3.3 to 50 mm (coarsest)	silicates (with very few exceptions)	Ogg
Om octahedrite	0.5 to 1.3 mm (medium)	silicates (with very few exceptions)	Om
plessitic octahedrite	less than 0.2 mm	kamacite spindles	Opl

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