mans juweliersware Die eienskappe en tipes van topaas

Topaz is a kind of aluminosilicate chloride or hydroxide. It belongs to the orthorhombic mineral. Die brekingsindeks is 1.619-1.637, die dubbelbrekingsverskil is 0.008-0.010, the specific gravity is about 3.53, en die hardheid is 8. , Second only to red sapphire corundum, but its toughness is very poor, because the topaz crystal has a set of perfect cleavage, cleavage is a plane in the mineral crystal that can be split along a specific direction, this cleavage surface and The crystal lattice structure of mineral crystals is related, and topaz has this set of cleavage, so you need to be extra careful when cutting it. Improper pressure will cause the topaz to crack along the cleavage surface.

Die spar sal so hoog wees as 1.74, die soortlike gewig is tussen 3.58 en 3.61, die hardheid is 8, en die verspreidingskoers is 0.026.

In terme van insluitings, die helderheid van die meeste spinelle is baie hoër as dié van korundedelstene. Die horingvormige kristalinsluitings wat dikwels in spinel voorkom, word gewoonlik sequins genoem. Hulle is klein spinelkristalle, en hiasintkristalle verskyn dikwels in spinel.

Die meeste van die goeie spinels in die wêreld word byna almal in Mogok vervaardig, Myanmar. Benewens Myanmar, spinel word in Sri Lanka vervaardig, Afghanistan, Kambodja en Thailand, en Australië, Maleisië, Brasilië, en die Verenigde State het ook 'n klein hoeveelheid produksie.

Types of Topaz:

Imperial Topaz: redish orange topaz with a medium to darker color, redish orange topaz, is the most expensive type of topaz, sometimes the lighter golden orange topaz is also called imperial topaz , The price varies slightly with the shade of the color.

Pink Topaz (Pink Topaz): Pink Topaz, the pink color is the most popular among the Nian saints, the price is second only to the Emperor Topaz.

Golden Topaz: Light yellow to golden topaz, the price is lower than Te Topaz, the golden color is the most popular type.

Blue Topaz: Light blue to darker sky blue topaz. It is the most common type of topaz in the gem market. It is cheap and refreshing in color. It is one of the favorite gems for young girls.

Colorless Topaz: A gemstone that used to be considered a diamond in a Portuguese crown is actually a colorless topaz. The jewelry industry jokingly calls it "slaaf se diamant" because its price is very different from real diamonds. Although it is often cut to resemble the brilliant cut of diamonds, it is very different from the diamond's brilliance, so it is easy to see The difference in diamonds.

 

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