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Publication
Often the names of these minerals are reminiscent of their chemical compositions, the names of scientists and researchers, as well as geographical names associated with the history of first finds and descriptions.
Everyone knows the "treasure island", the birthplace of spices and gems - Sri Lanka, aka Ceylon.
Historically, in gemology, color varieties have been given incomparably greater importance. At the same time, the collection can be displayed both within the systematic themes and within the color series.
When choosing cut stones for a collection, the problem of the size of the stones often arises. Some gemstones can be demonstrated by cuts weighing more than a kilogram, while others are extremely rarely represented even by carat stones.
When collecting gemological collections, the type of cut of the stone is often ignored, but when comparing stones it is better to represent them in the form of close, or better, identical in shape and type of cuts.
