Among the five continents, Asia is not the continent with the most gem varieties and production. The other four continents have their own strengths. 2. Africa The African continent is extremely rich in gem production and is known as the richest gem warehouse on earth. The main gems are diamonds, smaragde, tanzaniete, goue smaragde, robyne, [...]
Kategorie -argiewe: Juwele nuus
Die sterkte van verspreiding van verskillende edelstene is anders. Dit word gewoonlik uitgedruk deur die verskil tussen die brekingsindeks gemeet deur rooi lig by 686.7nm en pers lig (460.8nm 1), en word dispersiewaarde genoem. Oor die algemeen, die verspreidingswaarde groter as 0.03 word sterk verspreiding genoem. Colorless or light-colored gems with strong dispersion can [...]
1. Helps identify gem species There are special inclusions in some gems, en die tipe edelstene kan bepaal word deur hierdie insluitings te bestudeer. Byvoorbeeld, robyne bevat dikwels naaldvormige rutieldeeltjies, en hulle kruis by 60 hoeke. Dit word bepaal deur die simmetrie van die robyn self. Dus, it is a unique inclusion of [...]
Mense noem die insluitings gewoonlik in juwele "onsuiwerhede." Dus, die insluitings in edelstene is ook 'n faktor in die evaluering van die kwaliteit van edelstene; byvoorbeeld, in die kwaliteit-evaluering van diamante, 'n belangrike maatstaf is "helderheid", dit is, die netheid van die binnekant van die juweel. Oor die algemeen gesproke, hoe minder onsuiwerhede in die edelsteen, die [...]
Rots Kristal, die minerale naam is kwarts, is 'n baie ou juweel. Vir duisende jare, kristal is beskou as 'n simbool van onversetlike, reinheid en vriendelikheid met sy reinheid, deursigtige en harde tekstuur. Volgens die legende het die antieke Romeine eers kristal in die Alpe verkry, they thought it was changed by [...]
Corundum is a mineral name, the English name is Corundum. Among corundum minerals, corundum that reaches gem level is called corundum gems. Corundum gemstones include rubies and sapphires. The red ones (medium shades of red to dark red to purple) are called rubies, and the other colors are collectively called sapphires, including pink and sapphires. [...]
The cabochon type of gemstones is also called the body type or convex type. It consists of a polished arc-shaped top surface and a rough ground but not polished bottom surface. Its main feature is that the ornamental surface is a polished curved surface. Curved cuts are divided into three categories according to the top [...]
Crystal is now a frequent visitor in the jewelry market. It should be pointed out that there are natural crystals and artificial crystals. Man-made crystals, to put it plainly, are glass, kleurvol, lae koste, and very popular. The natural crystal is the essence of the earth for hundreds of millions of years. Dit is skaars, [...]
Volgens navorsing, humans learned to use crystal to grind decorative gems and carved art crafts in prehistoric times. In prehistoric times, the ancestors of Egypt and Europe used crystals as axes, scrapers and weapons, and American Indians believed that crystals could suppress demons and ward off evil and be invincible. The ancient Mayans used [...]
Crystal not only has colorful colors and crystal clear luster, but also has spirituality and energy that other gems do not possess. Dus, it is deeply loved by astrology masters and prophets and has become a medium for them to communicate with the spiritual world. It is said that it also has the effect of [...]