What is "opal"?

The so-called "opal" in gemology refers to alumoberyl with the effect of cat's eye. Any other gemstone mineral with cat's eye effect cannot be called "opal" in a general way, but must be preceded by its mineral name, such as "Emerald Opal" or "Quartz Opal ".

The chemical composition of alumoberyl is beryllium aluminate. The crystal is columnar or plate-shaped. It can be brownish yellow, greenish yellow and so on. It has glass luster, hardness of 8.5 and proportion of 4.73. Conchoidal fracture with white stripes. When it has densely oriented fibrous and acicular mineral inclusions or tubular holes in its interior, it will produce a bright band like the cat's eye pupil due to the reflection of light. This is the cat's eye effect. When the gemstone is turned, this bright band will move on the surface of the gemstone, so it is also called " vagrant colours" necklace photo[Contact Us], which is the most important feature of the opal. Opal is often used as ring surface, and the best opal is produced in Sri Lanka.

What is "K gold"?

Since the jewelry made of pure gold is too soft, it is difficult to inlay a variety of exquisite styles, especially when it is inlaid with pearls, precious stones and jadeites. Therefore, from ancient times, people knew to add a small amount of silver, copper, zinc and other metals in pure gold to increase the strength and toughness of gold, the gold ornaments made in this way are called color gold. The making of my name jewelry[here] gold to determine the pure gold content in color gold is called "gold level", the English is karat, and the English word can also be referred to as "K". Therefore, the jewelry is also called "K" gold. Generally speaking, pure gold is 24K, that is, the theoretical gold content is 100%. Therefore, 1K means that the gold content of gold ornaments accounts for 1/24, about 4.16%. China's consumption habits generally use 24K, 18K, while in some countries in Europe and America, 14K or 12K gold is often used to set up jewelry.

What is amber?

According to the different colors and characteristics of amber, the species is divided into, golden amber, blood amber, insect amber, fragrant amber, spirit amber, stone amber, flower amber, water amber, wax amber, ceromel, red turpentine, among which the golden amber is precious quality amber. The value of amber is not high now, unless it is antiques, superb art or contains biological remains. Amber determines its economic value based on the clarity, shape and color of the insect. The color is strong and the impurities are not good. The color is best in green and transparent red. The most valuable variety is wrapped in insect-containing amber, commonly known as "Amber hidden bee", the best is for insects with clear, morphological life, large individuals and large quantities. It is used to make beads, buddhist beads, carvings, cigarette boxes, incense stick and so on.