How are Rubies and Sapphires Synthesized?

Artificial gems refer to crystalline or amorphous bodies that are artificially manufactured and have no known counterparts in nature.

artificial gemstone

English name: artificial stones

More than 50% of the world's artificial gems are processed in China, and about 80% of them are distributed and traded through the Wuzhou market. China has become the world's artificial gem cutting and grinding center. The formation of China's artificial gem cutting and processing center, represented by Wuzhou, Guangxi, has shifted the focus of processing and production of artificial gems in the world to China. In addition to Wuzhou, Guangxi, more than 20 regions, including Xiuyan, Liaoning, Changle, Shandong, Panyu, Guangdong, Shenzhen, Zhenping, Henan, Zhuji, Zhejiang, Yiwu, Donghai, Jiangsu, and Yangzhou, rely on their geographical advantages and precious jade resources to form a certain Large-scale jewelry specialty industry cluster.

There are many types of artificial gems, and their materials are different, mainly artificial zircon (cubic zirconia),

Main places of production are Guangxi, Guangdong, Zhejiang and Shandong

1. Unnatural gems include imitation gems and synthetic gems. Imitation gems are usually made of cheap materials such as plastic, but they look like gems, and ordinary consumers can tell them with the naked eye. Artificial gemstones are artificially synthesized with chemical materials in a short period of time, and their physical properties and chemical composition are exactly the same as natural gemstones.

Because natural gemstones are beautiful and scarce, they are very popular, so they are very expensive, so natural gemstones have become a symbol of wealth. Because of this, people are always looking for materials that are easy to produce, low in value, and basically the same or similar to natural gemstones. These gem materials, wholly or partly produced or manufactured by man, used to make jewelry and ornaments are called artificial gems. ?

From the perspective of classification, artificial gemstones are classified into synthetic gemstones, artificial gemstones, composite gemstones, and reconstructed gemstones based on differences in human factors and the specific characteristics of the product.
Synthetic gem: refers to crystalline or amorphous materials that are partially or completely manufactured by man. The physical properties, chemical composition and crystal structure of these materials are basically the same as the corresponding natural gems. Such as synthetic ruby and natural ruby chemical composition are Al2O3 (containing trace elements Cr), they have the same refractive index and hardness;
Artificial gem: refers to the crystalline or amorphous materials manufactured by man, but these materials have no natural counterparts. Such as artificial strontium titanate, such compounds have not been found in nature so far;

The national standard GB / T16552-2003 of the "Name of Jewelry and Jade of the People's Republic of China" promulgated and implemented in July 2003 is currently in the process of implementing laws and regulations on precious stones. In the vast natural world, there are more than 130 kinds of material and minerals that humans have discovered and named. There are more than 130 kinds that can be used to make jewelry. We call these beautiful stones precious stones. The types are listed and divided into categories:

[Naturally generated gems] are produced by nature, water and air in the world. They must have the following characteristics: they must have a certain aesthetic appreciation, a certain resistance to acid and alkali, abrasion resistance, and a small amount of production. Precious and difficult to find, and also need to have the plasticity that can be carved, carved into a single crystal mineral body material for decorative jewelry and artwork.

[Naturally generated jade] is produced by nature, water and air. They must also have the following characteristics: they must have a certain aesthetic appreciation, certain acid and alkali resistance, corrosion resistance, and collection. A collective mineral body of value and process value, of which amorphous body occupies a small part. For example: Jadeite, White Jade, Tangling Jade, Jasper, Hotan Jade, Obsidian, Agate, Opal, etc.

[Gem of naturally occurring organic matter] All are formed by animals and plants on the earth. This process is the same as natural jade. Sometimes it takes hundreds of millions of years. A very small part of the formed organic matter has general treasures. The characteristic elements of jade can be made into all kinds of jewelry and living decorations. Such substances are called naturally occurring organic material gems. Like fossils of dinosaurs, bones of marine life, pearl shells, ivory carvings, seed kernels of trees and more.

[Scientific breeding gems] The gems cultivated artificially through scientific and technological means are completely or partly cultivated, maintained, and grown by scientific and technological factors. The chemical composition and physical properties of gems are exactly the same as those of natural gems. Pearls, cultured corals, etc.

[Artificial artificial gemstones] or artificial gemstones are made of other materials similar to the appearance, color, optical effect, weight, density, etc. of jewellery and jade. Its chemical and physical composition is completely different from natural gemstones. Such as artificial jade, artificial amber, artificial pearl, etc. This kind of material used as gem is basically glass, plastic, resin, clay, etc., which mainly reflects the value of craft brand.

[Remanufactured artificial gemstones] refers to the use of various techniques and methods by humans to remove the remaining useless or inferior commercial gems in powder form, slag form, after melting, kneading, pressing, etc. Method of processing caused by jewelry jade. For example: amber, coral, turquoise and so on.