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Seaside morel
While mushroom pickers all over Russia rushed to collect the first mushrooms, which had just shown their bumpy caps from under the ground, in Kaliningrad, the miners of the Primorsky quarry were harvesting a different kind of crop. On May 1, the day of international solidarity of workers, the second amber nugget weighing 1097 grams was found in the quarry of the Amber Combine. The stone is honey-yellow with an orange-brown near-surface layer, translucent. The shape of the stone approaches isometric, the surface with small pits and one elongated depression.
В геммологической практике бывают весьма увлекательные случаи с диагностикой ювелирных вставок
Но помимо редкости цвета и высокой стоимости таких камней, многие розовые камни выделяются одной замечательной особенностью – они проявляют плеохроизм, то есть в зависимости от положения осмотра камня он может иметь дополнительные оттенки – оранжевый или пурпурный.
Currently, gemstones are produced by two fundamentally different technological methods - the High Pressure - High Temperature method (“HPHT”, High-pressure & High-temperature) and the Chemical Vapor Deposition (“CVD”, Chemical vapor deposition) method. The "HPHT" method is the most tested classical synthesis method, which can be used both carbon deposition on diamond from flux melts and catalytic reactions. In "CVD" synthesis, diamond growth occurs on a seed during carbon deposition mainly from a gaseous medium at relatively low temperatures and pressures.
Jewelry and precious stones are just such a category of goods, when buying which you need to pay attention to many criteria.
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.