Zircon, also known as Zirconite or "hyacinth stone" in Japan, is a December birthday stone, symbolizing success. Its English name is Zircon, one of the oldest minerals formed on Earth. Zircon is the mineral name, formerly known as zircon stone, hyacinth stone, transparent as a gem, said zircon gem. Its source is probably evolved from the Arabic "Zarkun", meaning "cinnabar and silver vermilion"; Another said it came from the ancient Persian word "Zargun," which means "golden yellow." The first official use of the word "Zircon" was in 1783 to describe a green Zircon crystal from Sri Lanka.

Many things are known to denature after heat treatment, and so is zircon. If low-form zircons are heated enough, they turn into clear, colorless crystals. For example, Sri Lankan zircons are mostly green and low-type zircons. After heat treatment, the color of the zircons is significantly lighter and they become high-type zircons. Red and brown zircons from China's Hainan province can be turned colorless after heat treatment.

Zircon [4] is produced as an accessory mineral in various igneous rocks. Since zircons are chemically stable, they are often preserved in sand bleachings and occur as detrital materials in sedimentary and sedimentary metamorphic rocks. The most valuable zircons are sand type zircon deposits. The mineralization can be enriched in alkaline rocks and alkaline pegmatite, and the famous producing areas are southern Norway and Urals of Russia. Zircon is also often found in placer deposits. The world's most important gem-grade zircons are found in Laos, Cambodia, Myanmar and Thailand. Gemstone grade zircons are also found in alkaline basalts in eastern China.

Zircon is a kind of gem with special properties. It has higher refractive rate and stronger dispersion, colorless or pale blue breed after processing, have stronger fire phenomenon like diamond. Because it is very similar to diamond in appearance, it is regarded as a gem comparable to diamond.

Many things are known to denature after heat treatment, and so is zircon. If low-form zircons are heated enough, they turn into clear, colorless crystals. For example, Sri Lankan zircons are mostly green and low-type zircons. After heat treatment, the color of the zircons is significantly lighter and they become high-type zircons. Red and brown zircons from China's Hainan province can be turned colorless after heat treatment.

The gem world listed zircon, turquoise and lapis lazuli as December birthday stones, symbolizing victory, good luck and the guarantee of success.

Some of China's red or brownish-red zircons can also be ground directly into beautiful gems without color modification. However, it should be noted that the Chinese red low type zircon is also a gem with strong dichroism. If red zircons appear red in one direction and pale or nearly colorless in another. Therefore, when processing, it is necessary to grind in a certain direction, so that the red color appears on the front of the grinding type.

Famous sources of zircon include Sri Lanka, Thailand, Laos, and Cambodia. Zircon from Yunnan, China, is normally treated by heating.

Some of the diamond substitutes we saw in the mall -- the zircon claimed by the salesperson -- were not natural zircons, and a synthetic Cubic Zirconia, or CZ, which is much cheaper than natural zircon, is one of the most common alternatives to diamonds and should not be confused with natural zircon.

Zircon is widely distributed in acidic and alkaline magmatic rocks, as well as in basic and neutral rocks.

Tetragonal short columnar, tetragonal bipyramidal. Strong hardness, diamond luster. The distinction with rutile is hardness, rutile has complete cleavage. Zircon differs from cassiterite in that it is less dense. Zircon differs from monazite in that it has a four-square-columnar crystalline shape, and its hardness is relatively high.

Zircon is characterized by high refractive index, strong gloss, high birefractive index, high density, high dispersion and typical spectral characteristics.

Zircon can be mixed with gemstones of any color and transparency due to its rich and varying shades of color. The most easily mixed gemstones are diamond, spinel, chrysoberyl, sapphire, ruby, garnet, zircon, and topatite

Matters needing attention

Zircon is a common mineral used in gemstones [7]. However, some low-type zircons contain radioactive elements. Therefore, some low-type zircons are radioactive, especially bright orange low-type zircons, which should not be worn as jewelry. Therefore, if the zircon is used for jewelry, the low-type zircon is not acceptable. The low-type zircon is the zircon whose crystal becomes amorphous due to radioactivity, and it is likely to be radioactive. Therefore, only high-type zircon will be used for jewelry.

Related to culture

For some, wearing red zircons is thought to have a hypnotic effect, to ward off plague and defeat evil. Today, in some countries, zircon and turquoise are used together as the December birthstone to symbolize success and victory. High-type zircon is a mineral crystallized in the early stage of magma. It does not contain radioactive elements and is harmless to human body. The world's most famous blue zircon, weighing 208 carats, is now in the collection of the New York Museum of Natural History.