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Publication
This chain silicate belongs to the pyroxenoid family and is relatively rare in Russia in the form of large precipitates.
Often in jewelry there are black faceted inserts, positioned as "black spinel".
Actinolite is, at first glance, a discreet rock-forming mineral from the supergroup of amphiboles.
Simpsonite is one of the rare collectible gemstones. This mineral is found in the form of gem-quality precipitates in Australia, Brazil and Zimbabwe.
Today we will talk about three minerals, named after researchers, found in the form of inclusions in sapphire, important for its diagnosis and determination of the fact of heat treatment.
