| 21. | Submicron-sized goethite [ FeO ( OH ) ] is yellow; coarse goethite is brown.
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| 22. | Submicron-sized goethite [ FeO ( OH ) ] is yellow; coarse goethite is brown.
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| 23. | Although they have the same chemical formula as goethite, their different crystalline structures make them distinct minerals.
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| 24. | The evidence included sulfates and the minerals goethite and carbonates which only form in the presence of water.
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| 25. | The evidence included sulfates and the minerals goethite and carbonates that only form in the presence of water.
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| 26. | It occurs in association with basaluminite, gibbsite, epsomite, gypsum, celestine, dolomite and goethite.
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| 27. | This allows for goethite to grow within the olivine making the close packed planes common for both structures.
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| 28. | In general, bog ores consist primarily of iron oxyhydroxides, commonly goethite ( FeO ( OH ) ).
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| 29. | This iron ore was previously mined between 1967 and 1974, and consists of haematite with some goethite and limonite.
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| 30. | All the nickel in the silicate zone is leached downwards ( absolute nickel concentration ) from the overlying goethite zone.
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