| 21. | In addition to mineralogical collections, he collected zoological and botanical specimens.
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| 22. | It was approved by the International Mineralogical Association in 2002.
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| 23. | It was approved by the International Mineralogical Association in 1996.
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| 24. | In 1827 he was elected an honorary member of Jena Mineralogical Society.
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| 25. | Variations in the radiation indicate differences in mineralogical composition.
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| 26. | This classification is based essentially on the mineralogical constitution of the igneous rocks.
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| 27. | These samples included zoological, botanical and mineralogical specimens.
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| 28. | The Africa-exhibition and the majority of mineralogical and paleontological collections perished.
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| 29. | In 1983 he was elected President of the Mineralogical Society of Great Britain.
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| 30. | This mineral and its name are officially recognized by the International Mineralogical Association.
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