da sapere — February 3, 2019 at 4:30 am

All about amethyst




The stone of February is the amethyst. But this gem also it like in the other 11 months of the year. Discover the qualities of the amethyst in this article ♦

Has always been considered a sort of talisman: Sumerians and Babylonians and Egyptians wore amulets made with amethyst for protection, and for the ancient Chinese was a material with which to store spices, healing balms and ointments. In nature this variety of quartz is found inside of stony masses and quarries, geodes, crystals containing groupings. One of the most famous is the one discovered in Brazil in the area of ​​Rio Grande Sol, 30 meters long and 15 meters completely covered with amethyst crystals width, so large that it must be dug in the ground. Amethyst is also the stone of February.

Anello della collezione Tiple-Trêfle. Oro bianco 18 carati, diamanti, ametista, zaffiri
Isabelle Langlois, anello della collezione Tiple-Trêfle. Oro bianco 18 carati, diamanti, ametista, zaffiri

The color range. It is truly remarkable, ranging from light pink to deep purple with many intermediate shades, as the example lavender or lilac, christened Rose de France, or the darkest shade almost bluish shades from red or pink typical of the stones from Russia , whose mines are now exhausted. Then there are amethysts Uruguay and Arizona with a deep blue-purple, the Zambian light purple. All owe their color to iron impurities. Some are two-tone, gold and purple, are called ametryne, and consist of quartz citrine and amethyst. Others, are green and are baptized prisiolite.

Anello Sissi, in oro, agata e ametista
Sanalitro, anello Sissi, in oro, agata e ametista

Origin. There are many mineral sources, practically in almost all over the world, but the most important producers are Brazil, Uruguay, Madagascar and Zambia. A good quality stones are also found in the United States, South Korea and Austria.

Anello in oro e ametista
Anello in oro e ametista

Rating. Until the 18th century it was considered a precious gem as much as a diamond, a sapphire, an emerald or a ruby. The most valuable specimens came from the Ural Mountains of Russia, but the discovery of large deposits in Brazil and other countries has largely decreased the price. Currently the main evaluation criterion is the color: the more intense and more uniform the quality. Attention to the nuances, must be neither brown nor gray.

Purity. It is a gem of type II, so it can have slight inclusions visible to the naked eye but if its dark color hides, it becomes more difficult in the pink variety, lavender or green. It is often found in large, it can be up to 20 carats, and is almost always natural because the heat treatment and thus the cost of such a convenient stone does not make sense.


Collana a due fili in oro bianco e ametiste
Andreoli, collana a due fili in oro bianco e ametiste

Collezione Cascata. Orologio bracciale con cassa in oro rosa con 128 rubini a taglio brillante, 126 ametiste a taglio brillante e 72 ametiste ovali. Quadrante: set con 148 ametiste. Oro rosa chiusura pieghevole con 95 ametiste
Collezione Cascata di de Grisogono. Orologio bracciale con cassa in oro rosa con 128 rubini a taglio brillante, 126 ametiste a taglio brillante e 72 ametiste ovali. Quadrante: set con 148 ametiste. Oro rosa chiusura pieghevole con 95 ametiste
Spilla con ametista e diamanti di Vhernier
Spilla con ametista e diamanti di Vhernier
Anello in oro bianco con ametista e diamanti
Anello in oro bianco con ametista e diamanti
Anello doppio con ametista
Taffin, anello doppio con ametista
Orecchini Orchidea, giadeite color lavanda, kinzite, ametista, diamanti
Fernando Jorge, orecchini Orchidea, giadeite color lavanda, kunzite, ametista, diamanti
Suzanne Belperron, spilla Uva in oro e 15 ametiste di diverso taglio e colore
Suzanne Belperron, spilla Uva in oro e 15 ametiste di diverso taglio e colore
Geode scoperto in una miniera dell'Uruguay
Geode scoperto in una miniera dell’Uruguay
Chopard, Red Carpet Collection 2014, orecchini in oro bianco 18 carati composto da due ametiste a forma di pera per un totale di 23.58 carati
Chopard, Red Carpet Collection 2014, orecchini in oro bianco 18 carati composto da due ametiste a forma di pera per un totale di 23.58 carati
Cartier, spilla Caresse d'orchidée in oro bianco e petali di ametista e acquamarina scolpiti
Cartier, spilla Caresse d’orchidée in oro bianco e petali di ametista e acquamarina scolpiti
Aletto Bros, orecchini con ametiste lilla e rubini e diamanti centrali
Aletto Bros, orecchini con ametiste lilla e rubini e diamanti centrali
Tiffany, anello in oro rosa con ametista Rose de France, taglio cuscino di 5,70 carati e diamanti tondi taglio brillante.
Tiffany, anello in oro rosa con ametista Rose de France, taglio cuscino di 5,70 carati e diamanti tondi taglio brillante.
Anello in oro bianco e ametrina taglio smeraldo
Anello in oro bianco e ametrina taglio smeraldo

Pomellato, anello Pin Up con prisiolite centrale e quarzi citrini e granati arancio taglio rotondo
Pomellato, anello Pin Up con prisiolite centrale e quarzi citrini e granati arancio taglio rotondo







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