The Gem Luster has been rare and beautiful for thousands of years. What are the categories of the luster of gemstones? Normaltan Jewelry analyzes the luster of gemstones with you.

All About Gem Luster

Everything You Need To Know

Types of gem luster

In the mineral world, the main types of luster can be divided into diamond luster, glass luster, metallic luster, etc. The luster of most gemstones currently belongs to glass luster.

Diamond luster

A brilliant, mirror-like appearance of a gemstone, such as diamond, diamond.

diamond Luster

Vitreous luster

Refers to the luster of a glass surface, such as most gemstones such as ruby, topaz, sapphire, opal, tourmaline, and tourmaline.

Vitreous luster

Pearl luster

Gemstones with this luster have concentric circular structures on the surface that scatter light emissions and appear hazy, like pearls. Some may even display iridescent colors on their surface.pearl Luster

Silky luster

Some gemstones, such as HuQingShi. The surface of this kind of Gems show a bright and silky sheen, or what appear to be the fine parallel lines of the grain of the fabric.

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Resin gloss

The color of gemstones such as amber is yellow or yellowish brown, and the luster of resins such as rosin can be seen on the fractured surface. Sphalerite gemstones may also have a resinous sheen.

Resin gloss

Greasy sheen

Among the grease luster, the most representative gemstone is Hetian jade. Greasy luster can also be seen on some light-colored gemstones with glass luster or diamond luster.

For example, the polished surface of a quartz crystal is glass luster, and the fracture can be grease luster. The fractures of garnet and apatite are mostly greasy luster.

Greasy sheen

The concept of gem luster

The luster of a gem refers to the ability of the surface of the gem to reflect light. The more reflective a gemstone’s surface is, the more lustrous it will be. The strength of this surface glow depends primarily on the gem’s refractive index and polish.

Due to the different degrees of absorption and reflection of light energy by various gemstones, the luster of gemstones is also different.

Theoretically speaking, gemstones have a strong ability to reflect light and absorb more light, and such gemstones generally have weak luster. A gemstone has a high luster if it absorbs little light and has a high reflectivity. The greater the reflectivity of the gemstone, the stronger the luster.

Black diamond1

The above are the knowledge points of “gem luster” shared with you by Normaltan Jewelry. If you have any other questions, please feel free to contact, or directly click on our website

  1. Natural Black Opal

Opal (OPAL) originated from the Latin OPALUS, which means “the beauty of the gemstone is one”. Australia, which was originally produced, occurred at least about 65 million years ago. Silicon dioxide sediments gradually appeared on the earth’s coastline. After 35 million years of evolution, silicon dioxide sediments have been transformed into soluble silica. After several rotations of the ground, they slowly formed the current protein stones. We can see that the entire formation process takes about 5 million years, which is a long process. It is not completely black. It is relatively lighter than Opal.

Natural Black Opal is the leader in Opal. Because of the scarcity, high-quality black Opal is expensive. As an October birthstone, people believe that protein can be given human power. In the ancient Roman era, Opal was used as an amulet. People believe that no matter what difficulties, Opal can give the wearer for power. Each Opal Stone has unique patterns, brightness, and color. Some people believe that Opal fell from the sparkling universe. You must know that a good-looking Opal has a very high collection and ornamental value.

The above are the knowledge points of “gem luster” shared with you by Normaltan Jewelry. If you have any other questions, please feel free to contact, or directly click on our website