Notizie di gioielli

15 inch silver necklace A gem with easily confused names-topaz

Pubblicato il da Kingjy

There are two versions of the source of the English name of Topaz: one is derived from the old name “Topaz” of a small island in the Red Sea. The island does not produce topaz but is rich in peridot. The locals regard it as yellow. The variety of olivine is called “topazio”, hence the name. Another way to say that the English name of topaz is derived from the Sanskrit word “Topas”, il che significa “fire”.

Topaz was called “Huang Jing” in ancient times, and people often call it “Topaz” according to its transliteration.

In today’s gem industry, the concept of topaz is very clear, questo è, topaz refers specifically to the gemstone whose mineralogical name is topaz (also known as topaz), but not limited to yellow, it also includes “topaz”. Various varieties of minerals. Topaz, such as pink, reddish brown, sky blue, light green, ecc., belong to the category of topaz, but common topaz gems are mostly colorless and transparent.

In the international gem market, depending on the place of origin, there are “Ural topaz”, “Siberian topaz”, “Saxon topaz” (produced in eastern Germany), “Sri Lanka topaz” and the famous “Brazilian topaz”, ecc. , But some fake topazes are low-value yellow crystals, which can be distinguished from topazes by their crystal shape, hardness, density and crystal face pattern.

Because topaz is transparent and clean, has good reflective effect, high hardness, large particle size, and good polishing and polishing performance, it is mainly used as gemstones and processed into various ring faces, chicken hearts and pendants, especially the naturally produced wine yellow And the sky blue varieties are even more popular. Inoltre, larger crystals with beautiful and complete crystals are often treasures sought by collectors and museums; topaz with incomplete crystals and excellent texture can be used as a shaft for precision instruments.

 

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