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Iron, as in rusting iron. So, Ayers Rock, in the middle of Australia, is the single biggest lump of rusting iron ever discovered.
Iron sands, by the sea, are black because they're mixed with salt and, when it's exposed to the air, without thesalt, they go red.
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Ryan CD (ryan-cd) 3 months ago
Perfect answer i could not have said it better myself.
Might be high in iron, but why guess?
Get a soil test from your local county plant clinic.
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Copyright © 2017 HubPages Inc. and respective owners.