Oro

L'oro utilizzato nell'industria della gioielleria è in realtà una lega di oro e altri metalli. Ciò è dovuto principalmente al fatto che l'oro puro è un materiale troppo morbido. L'aggiunta di legature permette di ottenere determinate proprietà chimiche e fisiche, rendendo il metallo nobile adatto alla realizzazione di gioielli resistenti alla deformazione. Le legature influiscono anche sul colore della lega. A seconda della proporzione in cui sono state aggiunte all'oro, si può ottenere una lega di colori diversi. L'esatta composizione della lega è determinata dalle norme GOST 30649-99 e GOST P 51152-98, che regolano le proporzioni dei metalli aggiunti all'oro. Le leghe sono etichettate con lettere e numeri. L'oro è etichettato come "Zl", l'argento come "Sr", il rame come "M", lo zinco come "Ts", il platino come "Pl", il palladio come "Pd" e il nichel come "N". Il numero indica l'% di impurità aggiunte. Ad esempio, l'oro ZlSrM 585-80 è oro 585, con l'aggiunta di 8% di argento e 33,5% di rame. I colori più comuni dell'oro Nell'industria della gioielleria,...

Purtroppo per tutti gli amanti dell'oro, i gioielli in oro tendono a scurirsi quando vengono indossati. Ciò è dovuto sia all'ossidazione delle legature (additivi dell'oro che ne conferiscono la durezza) sia alla contaminazione generale. Sudore, secrezioni cutanee grasse, sporcizia, residui di detergenti, cosmetici: tutto ciò si accumula gradualmente sui gioielli e li priva della loro precedente lucentezza. Come pulire i gioielli in oro a casa, ve lo spieghiamo nel nostro articolo. Pulire l'oro con l'ammoniaca L'ammoniaca è in grado di portare non solo una persona, ma anche i gioielli d'oro. Per farlo, seguite i punti seguenti. Sciogliere 5-7 gocce di ammoniaca in un bicchiere d'acqua. Immergere i gioielli d'oro nella soluzione per 30 minuti. Estrarre il gioiello e sciacquarlo sotto l'acqua corrente. Asciugare i gioielli e poi passarli con un panno speciale in microfibra, feltro o flanella per farli brillare. Attenzione! L'alcol nafta ha un odore pungente. Quando si pulisce l'oro con questo prodotto, non dimenticare di ventilare bene la stanza! Aceto da tavola Questo metodo è adatto ...

Figura 1. Gioielli d'oro appannati

Tutti i gioielli in oro che indossiamo possono annerirsi con il tempo: orecchini, anelli, ciondoli, catene, bracciali. È indubbiamente molto frustrante. Esaminiamo le ragioni per cui l'oro diventa scuro. Cerchiamo di capire se è possibile prevenire o rallentare questo processo e come farlo.

Presagi popolari

Nella gente ci sono molte spiegazioni per questo fatto, e tutte sono negative, si può anche dire "infauste". Secondo i presagi, se sui gioielli d'oro compaiono aree scure, significa che al loro proprietario è stato imposto il deterioramento o il malocchio. Un altro equivoco comune è che l'annerimento dei gioielli d'oro indichi lo sviluppo di una grave malattia nel corpo umano. In realtà, tutto questo è solo un pregiudizio che non ha nulla a che fare con la realtà.

Spiegazioni scientifiche

Abbandoniamo le credenze popolari e passiamo alle vere ragioni per cui l'oro diventa nero sul corpo umano.

L'oro si scurisce a causa dell'ossidazione delle legature...

A favorite jewelry box, with gold and silver jewelry lovingly arranged in soft nests. You probably have one of those. And how do you choose what to wear today? On what principle? It is clear that jewelry is selected to the outfit, eye color, makeup, but the question is about something else - about appropriateness. Chains, bracelets, rings and earrings made of silver - for every day, and gold - on special occasions, right? But sometimes it sure feels like wearing both together. Is it possible to wear gold and silver at the same time or should you not? Let's find out. Why it is considered that gold and silver can not be worn together Until recently, wearing gold and silver jewelry together was considered an absolute taboo and a mauvais. Looking ahead, let's say that the situation is gradually changing, and these changes were initiated by daredevil jewelers, who are not able to overcome any taboos. In the meantime, let's go back a few years and listen to the arguments that were …

Figure 1. Testing gold for authenticity

Why are eternal values called eternal? Yes, because both in crises and in periods of prosperity they do not lose their importance. And when hard times come, people try to save their money not in "iPhones" and cryptocurrencies, but in gold. However, this also applies to good times - all financial guides consider the precious metal as a strategic asset, and recommend investors to keep at least 5-10% of their portfolio in gold.

Jewelry is also an investment. First of all, it is an asset, and therefore their purchase should be approached as pragmatically as possible. But what if you are offered to buy a bracelet or a ring "by hand" at a price lower than in a jewelry store or pawnshop? Be vigilant! And be sure to check the product, even if it is stamped. How to check the authenticity of gold at home? This is what we will talk about in this article.

Ways to check the authenticity of gold

The quest…

Fig 1. How to recognize gold or gilding in front of you

As long as mankind has existed, so long has deception lived in the world. Buying gold jewelry "by hand", on the Internet or in some other dubious places is always fraught with risk. For example, a diamond can be tested as a fianite, zircon, muassanite, which is very similar to a diamond, but costs 20 times cheaper. Or even just a piece of crystal glass. Well, and under the bright shine of gold can hide inexpensive silver or ordinary steel. And doubly offensive, if for a modest bijouterie you will pay as a luxury "jewelry".

Another option is also possible, less criminal. Suppose you inherited jewelry, and you want to know whether they are real or only imitation. Or maybe a ring or earrings were given to you as a gift by an admirer? A gift horse, of course, do not look in the teeth, but still curious - how highly you are valued, and how seriously they treat you? Simply put, is the jewel…

Figure 1. Platinum and gold bars

There are still those who are sure that platinum and white gold are one and the same. The misconception appeared because visually they are similar - they are both silver in color, shine spectacularly, are used in jewelry, and are not cheap. But despite the similarities, they are not the same metal. If you want to know what is the difference between platinum and white gold, as well as get sound advice on which of them is better to choose for a ring or earrings - read our article.

What is white gold

Fig 2. Nugget of gold

To begin with, let's remember the definition: "Gold (Aurum) is a noble yellow metal, the seventy-ninth element of Mendeleev's periodic table". The key here is "yellow color". There is not and cannot be white gold in nature. What is presented in jewelry showcases is an alloy of gold and mixtures of other metals.

So, if the ring has a 750 grade (the most common)…

When a loved one passes away, many heirs do not know what to do with their belongings. After 40 days have passed since the day of death, the clothes and shoes of the deceased, of course, can be given away or donated to the church. But what should the heirs do with the jewelry? How to act correctly? Is it possible to wear gold after a deceased relative, is it not dangerous, will not be perceived as sacrilege?

Superstitions and omens

People treat the completion of the earthly path with mystical horror. And in folk folklore, any contact with the otherworld, even through the things of the deceased, often carries negativity.

Hence the complex attitude to the inheritance of the deceased, and a lot of unsupported beliefs related to the disposal of their property. Is it possible to wear the gold of a deceased person, according to superstitious people? Many believe that no. They say that the things of the deceased carry the energy of death …

Fig 1. Which gold is better to choose: white or yellow gold White or yellow? The eternal question that makes us freeze in front of the jewelry store window, where rings, earrings, bracelets, brooches, chains and necklaces shine mesmerizingly. How beautifully the diamonds shine in a white gold ring! And this heavy yellow metal bracelet with large garnets strikes some barbaric unbridled luxury. How perfect it would look with your favorite evening dress! What to choose? What is the difference between white gold and ordinary yellow gold? To begin with, let's understand the difference between white gold and yellow gold. In general, the "chameleonic" shade of gold is a mystery for the uninitiated. Copper is always red, iron is gray, mercury, platinum and silver are white. But gold can be white, yellow and red. What's this phantasmagoria with changing suits? In fact, it's simple. The usual natural color of gold is yellow. But "jewelry" is never made of pure metal: it is too soft. Yo…

Fig 1. Which gold is better to choose: red or yellow gold There is something magical in the shine of gold. Since ancient times its shine attracts attention, mesmerizes, awakens the desire to possess. Except that in ancient times the shine of this metal was exclusively golden, and today there are ornaments of yellow, red and other colors on sale. If you are faced with the task of buying a ring or earrings, the question arises - what gold is better to choose for jewelry red or yellow? And, in fact, what is the difference between them in general, except for the color? Which one to prefer? We hope this article will help you decide and do not regret the choice. What is the difference between red gold and yellow gold To begin with, pure aurum (the chemical element Au) is practically not used in the jewelry industry. The noble metal is too plastic, easily deformed, scratched, bent, broken, and therefore not suitable for jewelry. To wear a 998 or 999 ring is like going to a ball wea…