Significance of Amazonite

The distinctive features of the chemical composition, structure, and properties of amazonite depend on the conditions of its geological, petrological, and geochemical origin. For this type of study, the mineralogists of the Russian scientific school have proposed the term “typomorphic features” of minerals. The various geological, petrological, and geochemical settings of amazonite crystals establish the distinctive features of its crystal chemical and spectrometric parameters. It is important to recognize the possibilities that amazonite offers as a prospecting index for some types of rare-metals deposits (Ta, Nb), REE mineralizations, and some gemmological minerals (topaz, beryl). To evaluate the various rare-metal and REE deposits correctly, in many cases it is still necessary to obtain detailed information on the typomorphic features for different amazonite generations. The crystal chemical and spectrometric parameters of amazonite may be important for the exploration of diverse deposits of rare metals and REE mineralizations and their economic evaluation.