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It is known that nepheline is used not only as a raw material for the production of aluminum and as a cement raw material, but also as an ornamental and jewelry stone used to make cabochons from translucent and translucent varieties with an attractive color. Many people know the so-called "solar nepheline" - translucent (up to translucent) nepheline with inclusions that cause adventurism. But rarely has anyone come across transparent colorless nephelines suitable for facet cutting, and there are such stones, but they are extremely rare. Most of the cut nepheline comes from Canada (Ontario) and Germany (Baden-Wurtenberg). The rarity of nepheline is not only its disadvantage, which requires an individual approach to each stone, but also its dignity, elevating it to the category of gemological rarities.

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Sogdianite is a rather rare mineral and more often it can be found as a collection material (moreover, in systematic collections), and it is extremely rare in jewelry.

Tauson Lev Vladimirovich (October 27, 1917 - November 23, 1989), an outstanding Soviet geologist and geochemist, member of the USSR Academy of Sciences (since 1981).

On October 23, 1992, almost 30 years ago, a significant event took place - the first diamond in Yakutia was cut at the Suntar plant of the Sakha-Japan Diamond joint venture (Tuymaada-Diamond [Yakutia] and Arda-Company [Japan])

Last August was not generous with the finds of large amber nuggets, but towards its end, on the eve of the Apple Feast, this summer month also pleased amber miners with a large nugget.

The train of thought of suppliers and sellers (and sometimes manufacturers) of jewelry is interesting.