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The Mineral Identification Key |  |
Minerals with a Botyroidal habit
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| Hematite, 2cm across, Wisconsin |
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| Pyrolusite, 6cm across, Wisconsin |
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| Malachite, 8cm across, Zaire |
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| Quartz, variety agate, 3cm across, Texas |
Minerals with a stalagtitic habit
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| Goethite, 4cm across, New Mexico |
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| Rhodochrosite, 6cm tall, Argentina |
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| Goethite, 10cm across, Wisconsin |
Minerals with a reniform habit
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| Stibarsen, 4cm across, Mexico |
