Last Updated on 25/05/2024 by DR.Travor

The mystery of opal, let’s unraveling it.

Today, Normaltan Jewelry reveals the mystery of opal together with you.

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  1. What is opal?

Opal, also known as opal, Shanshanyun, English transliteration is “Opal” or “Opal”, and the name of gemology is Opal. Geologically speaking, precious opal is a rare discovery. Chemically, opal is a hydrated silica with the formula SiO2 nH2O. Unlike most gemstones, opal is not crystalline. That means silica doesn’t form nice, neat crystalline structures. Instead, it forms microscopic amorphous spheres. The microstructure of opal is more like a ball of yarn.

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  1. Under what conditions does opal form?

Composition of Opal

Opal is a hydrate of silicon dioxide, and the composition is SiO2 n H2O, it is an amorphous structure, so it has no definite shape, and the fracture is shell-like, mainly formed by the colloidal precipitation of silicon dioxide. If it is deposited in biological remains, Then forms “tree jade”. The water content of opal is not fixed, generally around 3%-10%, but there are also as high as 20%; the hardness is 5-5.5; the specific gravity is 1.9-2.5; it is generally protein-colored, and if other atoms are mixed in, it can form Various colors, such as iron, calcium, magnesium, copper, etc., opal generally has glass luster or waxy luster. If the color luster changes with the angle, it is a precious gemstone, otherwise, it is just a decorative stone.

Formation of Opal    

Opal is formed by slow deposition at low temperatures and can occur in almost any rock, though it is generally found in limestone, sandstone, and basalt. Of course, it is also possible to synthesize opal at present, but the density of artificial synthesis is low and porous.

The timing of opal formation is a big mystery. In Australia’s opal mining regions, scientists estimate that opals began to form about 30 million years ago and calculate the growth rate of 1 cm opal to be 5-6 million years. However, a study of biogenic material in fractures of a Lightning Ridge black opal sample yielded radiocarbon ages of 1,000 to 7,000 years, much younger than other estimates. Ultimately, the time it takes for opal to form is still not fully understood.

  1. The meaning of opal

As early as in ancient Rome and ancient Greek mythology, opal was considered a magical stone. The honest shepherd Gyges (Gyges) could become invisible because he wore an opal ring. It is believed that “opals are the stones left by angels when they descend to the earth”. Therefore, women who wear opal are also the incarnation of angels, which can bring happiness to themselves and those around them, symbolizing luck and well-being.

It is said that there was an ancient Roman counselor named Nonius who treasured a beautiful opal. Anthony, the Roman ruler at the time, salivated after knowing this, but Nonius would rather lose all the treasures and power than be Unwilling to give up the beloved gem to Anthony. This shows the fascination of the Romans with opal at that time.

  1. The effect of opal


Wearing opal can inspire inspiration, and imagination, and bring breakthrough and leap-forward ideas and concepts. It is a gemstone for professionals and geniuses. Merchants must strengthen their ability and talent, have decisive execution ability, and be able to gather and attract wealth.

Exude personal charm

Opal was second only to emeralds in ancient times, accounting for the second place of gems. Chinese people love opal very much, especially during the Ming and Qing Dynasties, they regarded it as a court treasure. As a gemstone, opal is also popular in Europe and Asia. In ancient Rome, this gemstone was once considered a symbol of power. It helps to exude personal charm and demeanor and enriches creativity.

Extraordinary taste

Opal helps to cultivate extraordinary vision, broad mind, and extraordinary taste and can formulate ingenious strategies and implement them. Opal helps to improve the vitality of the body, psychic ability, and the power of prayer. Pink opal, like rose quartz, can also help love luck and enhance popularity, increasing the attraction to the opposite sex. Allowing opal to receive more moonlight can increase the popularity of the wearer and make it popular with others.

The above is the mystery of opal revealed by Normaltan Jewelry. We hope you will learn more about this mysterious gem.