Stones by zodiac signs

What is the name of a stone that changes color in the sun?

The sultanite chameleon stone became known to mankind relatively recently, but was immediately loved for its unusually beautiful color that plays in the sun. Jewelry with sultanite was worn by rich Arab sheikhs and rulers of eastern empires. It was believed that the stone could transform even an outwardly unattractive person. Therefore, this mineral was certainly present among the jewelry of aristocrats of past centuries.

Description and Application

Sultanite stone is a type of diaspore mineral and is hydrated alumina. It is used only for jewelry purposes. It is interesting that when extracted from the depths, in most cases the gem spontaneously crumbles, but the remaining core is real corundum with high density and hardness. This residue is used by jewelers. There are quite a lot of diaspora deposits on our planet, but there are few sultanite deposits left. It is believed that its production will soon be exhausted. In Russia, the mineral is mined in the Urals; there are also deposits in the Middle East, the USA and China. But the crystals that are found in the countries are too small and are of no interest to jewelers. The only high-quality gem is mined in Turkey. The Anatolian Mountains are a real treasure trove of this stone. The use of the mineral was first mentioned in eastern scriptures. Turkish sultans wore jewelry made of shiny gems and decorated their clothes and household items with them. Perhaps that is why the stone was called “sultanite”. There are other names for the gem, such as:

  • ferruginous kyanite;
  • Thanatarite;
  • zultanite

The characteristics of the mineral are not unique in any way from other gemstones. However, its main feature is its ability to change color. In nature, the mineral has different shades. The color depends on the presence of impurities in the stone. In the light it begins to play, shimmering from one shade to another.

Under different lighting conditions, the crystal can become either light green or amber-yellow, then turning into red-brown.

The price of real mineral is high. For example, for a ring with a 1-carat sultanite you will have to pay at least $300. However, a gem of this size does not allow you to enjoy the changeability of color. The cost is determined not only by the rarity of the stone, but also by the elegance of its framing. This mineral does not tolerate being surrounded by low-grade metals. If sultanite is inserted into cheap material, it will begin to fade. This property of the stone has long been used to determine the quality of precious metals. The gem requires only gold or silver frames. Sultanite in silver or gold will reveal itself in full force.

Due to its rarity and high cost, the gem is available only to wealthy people. Therefore, a synthetic analogue of the mineral is most often found in mass sale. Hydrothermal sultanite is produced in many countries, including Russia. Moreover, in our country, to produce a synthetic analogue of the mineral, they use a unique material called nanostal, created by Russian chemists.

Magical properties

Unlike many precious stones, this gem does not have healing properties. But it is widely used in witchcraft rituals. The magical properties of the sultanite stone have been known since ancient times. Fortune tellers used cracks in the mineral to predict the future. A pendant or ring with sultanite was used as an amulet that protected against the negative influence of envious and unkind people. The mineral is also able to warn the owner about impending misfortunes and life changes. In such cases, it magically crumbles.

The Turkish gem is perfect for representatives of creative professions. In aristocratic circles, the mineral has long been considered a stone of inspiration. This is the crystal of poets and musicians, artists and actors. Anyone who carries a stone with him easily tunes into a philosophical mood. The gem helps to think outside the box; it gives its owner perseverance and patience, which helps to move forward and not give up on the business he has started.

The magical properties of sultanite will help when speaking in public, giving the gift of eloquence.

Which zodiac signs can wear jewelry with a stone? Those for whom the mineral is suitable according to their horoscope include Aries, Leo and Sagittarius. Transparent crystals generally favor fire signs. Their gem gives them balance and the gift of foresight, and also reveals creative potential. For such zodiac signs as Virgo, Taurus and Capricorn, a brilliant gem gives dreaminess and romanticism. It helps relieve the emotional stiffness of earth signs, making them more sensual and cheerful.

Semi-precious and precious stones are full of mysteries! One of them is the ability to change its color. We are accustomed to the fact that a stone is something unchanging, and when it exhibits the properties of a living being, that is, changes, it causes delight, surprise and even fear.

When talking about changes in the color of a stone, one of three options is implied:

  • color change depending on lighting or viewing angle;
  • transition to another shade, extended over time (the color “gone away” over the years or within a few months);
  • deliberately changing the color of a stone in order to improve its appearance.

Thus, the change in color of a mineral may be a visual effect or an actual physical process.

Chameleon stones

The color of a stone is the main indicator of its value. Hue, lightness, saturation are the main components of color. Sometimes another one is added to them – the presence of additional shades, which is found in chameleon stones. Getting a chameleon for your collection is the dream of many connoisseurs of natural precious stones.


Some minerals are famous for their ability to change depending on the angle at which you look at them. Jewelers call this phenomenon “pleochroism,” and it is found in alexandrite, tanzanite, chrysoberyl, aquamarine, tourmaline, zircon, some examples of emerald and topaz, corundum, mainly ruby ​​and colored sapphires.

Color reverse

It also happens that a stone changes color due to lighting, this is the so-called. “Alexandrite effect”, color reverse or color changing effect. Rare alexandrites, mined in the Ural Malyshevsky mines, perform a small miracle: in the rays of the sun they are bluish-green, and in artificial light they become reddish-violet. The alexandrite effect, slightly less pronounced, is found in garnet, tourmaline, some sapphires from African mines, as well as in individual samples of many other stones.

Day and evening stones

Some minerals look better in natural light, and they are called “daylight”, while others look better in artificial light, this is the so-called. “evening stones” This is why ruby ​​earrings change in different lighting conditions: they look brighter in the evening. The same goes for the diamond, it is an evening stone and is created to amaze the imagination in the light of candles and spotlights. Well, the beauty of sapphire is better revealed during the day.

Different light sources have different effects on the perception of gemstone color. Fluorescent lamps enhance blue, violet, green colors in minerals, and a classic incandescent lamp with yellow light will brighten red, orange, and yellow accents in jewelry.

A gemstone that changes color over time

The greatest number of superstitions arose around stones that change color over time. It was assumed that the changes occur due to the fact that the talisman has taken upon itself the damage caused to the owner, or is trying to tell him about an approaching misfortune or illness. But the explanation for fading and other changes is more prosaic – the mineral was stored or used incorrectly.

Thus, beautiful blue topaz is afraid of sunlight. Spend a holiday with him on the beach, and by the end of the season he will turn into transparent glass. A beautiful blue tint is given by disturbances in the crystal lattice, and the sun “heals” topaz, correcting the defects, and the color disappears. In love with the heavenly transparency of this mineral? Opt for evening styles like these classic topaz earrings. Aquamarine does not tolerate the sun, which is why it is better to wear this stone in the evening – in UV rays it turns brown.

But the opinion that amethyst loses color in the sun is wrong. In order for natural amethyst to lose its color, it must be heated to 200°C. That’s why a set with natural Viola amethysts can become your family’s heirloom! There is a dependence of color fastness on the place of extraction. Those amethysts obtained from open areas do not change color in the sun, but stones obtained from a geode or an internal cavity do fade, but not nearly as quickly as topaz. The weakening of the color intensity will be noticeable after several decades.

Many stones “do not like” high temperatures, so it is better to remove jewelry with inserts before visiting a bathhouse or sauna. You should not store them on the window, or indeed in the light – put them in a jewelry box. Opals, turquoise, pearls, and corals are extremely sensitive to external influences. They are afraid not only of light, but also of water, household chemicals and cosmetics, and even dust.

Refinement of jewelry stones

Perfect gemstones are rare. That’s why people needed ways to improve their natural properties – refining technologies. They lead to a change in color, while the resulting shade remains forever. Refinement is permitted at the legislative level.

The most commonly used heat treatment is the so-called. annealing or roasting. It is carried out at high temperatures (up to 2000°C) and under special conditions, different for different minerals. Annealing refinement can be applied to aquamarines, citrines, rubies, sapphires and diamonds.

The second method of refining, due to which precious stones change color, is irradiation. It is used incl. on diamond and topaz, often in combination with annealing. Due to bombardment by neutrons, diamonds become yellow, reddish, and aquamarine. Gamma radiation makes topazes turn blue. Don’t worry – such exposure cannot cause harm to human health.

In Diva jewelry stores you can buy jewelry with natural precious inserts. Looking for unusual chameleon stones? We will offer you finished products or make custom jewelry with a unique insert. St. Petersburg brand Diva – for connoisseurs of natural precious stones!


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