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Iron and rocks containing iron show yellowish rust due to​

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Answer:

Iron–rich rocks in thin section Magnetite and hematite are opaque under the microscope under transmitted light. Under reflected light, magnetite shows up as metallic and a silver or black color. Hematite will be a more reddish-yellow color. Pyrite is seen as opaque, a yellow-gold color, and metallic.

User TurtleZero
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Iron gets its rust from exposure to moist and oxygen

User HeedfulCrayon
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