character: Magnetite
topic: Types of Iron Oxides
grade: 9
subject: Chemistry
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character: Hematite
topic: Types of Iron Oxides
grade: 9
subject: Chemistry
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character: Goethite
topic: Types of Iron Oxides
grade: 9
subject: Chemistry
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character: Ferrihydrite
topic: Types of Iron Oxides
grade: 9
subject: Chemistry
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