Rose cut (rose – rose cut)

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Throughout the history of the rose jewelry industry, it has always played a special and unique role. It is true that diamond and emerald cuts are widespread today, but it is still not possible to find a cut with the elegance and elegance of rose cuts. The history of this lathe dates back to the 16th century. They have round, flat floors; In the crown, incisions are made towards the apex. Triangular cuts are usually used in the cutting areas. At the same time, the number of adjacent triangles varies in different designs

The view from the top of the rock is always round. In the 16th century, rose carvings were used for court jewelry because of the unique splendor it gave to the stone; That is why they are becoming so ubiquitous today

What is onyx, its gemological characteristics

Onyx, its properties and uses Onyx is a type of white and black opal (cryptocrystalline quartz or chalcedony) This stone should not be confused with marble onyx, which is a limestone Onyx texture is parallel and homogeneous Some types of onyx, such as Sard onyx with a brown base and white top surface, carnelian onyx…

Onakite stone, specifications and application of onakite stone

What is Onakite Unakite is an igneous rock that is mainly composed of pink orthoclase feldspar, greenish-yellow epidote, gray or grayish quartz and small amounts of magnetite, chromite, ilmenite, apatite, zircon and other minerals Another name for this granite is epidote. Onakite stone is found from the fall of glaciers into the water and its…

What is oligoclase stone | Oligoclase detection methods

Oligoclase (in English: Oligoclase) With the chemical formula (NaCa) [Al 1-2 Si 3-2 O8], it is a mineral group and is derived from the word oligos. Color the flame green – insoluble in acids Various mixtures of albite to anorthite In terms of crystal shape: prismatic – disc-shaped – macle Color: black – black gray…

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