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The Mineral Identification Key |  |
Minerals with a oolitic habit
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| Manganese oxide, 3cm across, Australia |
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| Manganese oxide, 4cm across, Australia |
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| Manganese oxide, 3cm across, Australia |
Minerals with a pisolitic habit
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| Manganese oxide, 4cm across, Australia: while there tends to be a segregation by size, mixed groups do occur |
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| Bauxite, 5cm across, Australia |
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| Bauxite, 3cm across, Australia |
