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